NCSC-2026-0451

Vulnerability from csaf_ncscnl - Published: 2026-10-22 12:09 - Updated: 2026-10-22 12:09
Summary
Kwetsbaarheden verholpen in Cisco Expressway Series
Notes
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions: NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein. NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory. This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten: Cisco heeft meerdere kwetsbaarheden verholpen in Cisco Expressway Series.
Interpretaties: De kwetsbaarheden betreffen onder andere onvoldoende autorisatiecontroles tijdens Mobile en Remote Access provisioning, waardoor ongeauthenticeerde externe aanvallers toegang kunnen krijgen tot gevoelige informatie. Daarnaast is er een kwetsbaarheid in de databaseservice die het mogelijk maakt voor ongeauthenticeerde aanvallers met netwerktoegang om root-commando's uit te voeren via onvoldoende validatie van clientcertificaten bij TLS Verify Mode voor clustering. Verder zijn er diverse kwetsbaarheden geïdentificeerd door interne security reviews, waaronder problemen met improper resource control, authenticatie, input validatie, SQL-injectie, access control, pathname limitation, exception handling, out-of-bounds write, reachable assertions, null pointer dereference, uncaught exceptions, code injection, incorrect permission assignments, improper link resolutions en insecure handling of temporary files. Deze kwetsbaarheden kunnen leiden tot het omzeilen van toegangscontroles, het uitvoeren van ongeautoriseerde code, het verkrijgen van root-toegang en het blootstellen van gevoelige data. De kwetsbaarheden zijn intern ontdekt en worden aangepakt met software hardening updates.
Oplossingen: Cisco heeft software hardening updates uitgebracht om de diverse kwetsbaarheden in Cisco Expressway Series te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Kans: medium
Schade: high
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-59: Improper Link Resolution Before File Access ('Link Following')
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
CWE-94: Improper Control of Generation of Code ('Code Injection')
CWE-248: Uncaught Exception
CWE-377: Insecure Temporary File
CWE-476: NULL Pointer Dereference
CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere
CWE-617: Reachable Assertion
CWE-732: Incorrect Permission Assignment for Critical Resource
CWE-749: Exposed Dangerous Method or Function
CWE-787: Out-of-bounds Write
CWE-798: Use of Hard-coded Credentials
CVE-2026-76435

A vulnerability in Cisco Expressway Series allows unauthenticated remote attackers to bypass authorization checks during Mobile and Remote Access provisioning, enabling them to access sensitive device information.

5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-497 - Exposure of Sensitive System Information to an Unauthorized Control Sphere
Affected products
Product Identifier Version Remediation
vers:unknown/*
Cisco / Cisco Unified Communications Manager
 vers:unknown/*
vers:unknown/*
Cisco / Expressway
 vers:unknown/*
vers:unknown/*
Cisco / Expressway Series
 vers:unknown/*
CVE-2026-76466

A vulnerability in Cisco Expressway Series database service allows unauthenticated remote attackers with network access to execute arbitrary root commands due to persistent cookies and insufficient client certificate validation when TLS Verify Mode is enabled for clustering.

9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-798 - Use of Hard-coded Credentials
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76473

Cisco's engineering teams performed an internal security review of multiple collaboration products, resulting in software hardening releases addressing vulnerabilities related to improper resource control, including CVE-2026-76473 and CWE-74.

9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76474

Cisco engineering teams conducted an internal security review of multiple collaboration products, releasing software updates to address several authentication-related vulnerabilities including CVE-2026-76474 (CWE-287).

9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76475

Cisco engineering teams performed an internal security review of multiple collaboration products, releasing software updates to address several vulnerabilities involving improper input neutralization during web page generation (CVE-2026-76475, CWE-79).

9.3 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76476

Cisco engineering teams released software hardening updates for multiple collaboration products addressing several CWE-20 improper input validation vulnerabilities, including CVE-2026-76476.

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76477

Cisco engineering teams identified and addressed multiple SQL injection vulnerabilities (CWE-89) in several collaboration products through internal security reviews and subsequent software updates.

8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76478

Cisco's engineering teams conducted a thorough internal security review of multiple collaboration and communication products, resulting in software hardening releases addressing several improper access control vulnerabilities, including CVE-2026-76478 (CWE-284).

8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76479

Cisco engineering teams conducted an internal security review of multiple collaboration products, releasing software updates to address several vulnerabilities including improper pathname limitation (CVE-2026-76479, CWE-22).

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76481

Cisco engineering teams performed an internal security review of multiple collaboration products, releasing software updates that address several vulnerabilities related to improper handling of exceptional conditions, including CVE-2026-76481 (CWE-703).

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76487

A vulnerability in Cisco Unified Communications Manager and its Session Management Edition allows an unauthenticated remote attacker to bypass access controls by sending crafted HTTP requests, potentially gaining unauthorized network access.

5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-749 - Exposed Dangerous Method or Function
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76490

Cisco's Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including out-of-bounds write issues (CVE-2026-76490, CWE-787).

8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-787 - Out-of-bounds Write
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76491

Cisco's Expressway Series team released a software hardening update addressing multiple internally discovered vulnerabilities, including CVE-2026-76491 related to reachable assertions under CWE-617.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-617 - Reachable Assertion
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76492

Cisco's Expressway Series software team released a hardening update addressing multiple internally discovered vulnerabilities, including null pointer issues tracked under CVE-2026-76492 and CWE-476.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 - NULL Pointer Dereference
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76493

Cisco's Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including uncaught exceptions classified under CWE-248 and tracked by CVE-2026-76493.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-248 - Uncaught Exception
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76494

Cisco's Expressway Series team released software hardening updates addressing multiple internally discovered vulnerabilities, including code injection flaws classified under CWE-94 and tracked as CVE-2026-76494.

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76495

Cisco's Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including incorrect permission assignments (CVE-2026-76495, CWE-732).

7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-732 - Incorrect Permission Assignment for Critical Resource
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76496

Cisco's Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities related to improper link resolutions, including CVE-2026-76496 classified under CWE-59.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
CVE-2026-76497

Cisco's Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including insecure temporary file handling (CVE-2026-76497, CWE-377).

6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
CWE-377 - Insecure Temporary File
Affected products
Known affected 3 products, the same list as for CVE-2026-76435
References
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        "text": "Cisco heeft meerdere kwetsbaarheden verholpen in Cisco Expressway Series.",
        "title": "Feiten"
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        "text": "De kwetsbaarheden betreffen onder andere onvoldoende autorisatiecontroles tijdens Mobile en Remote Access provisioning, waardoor ongeauthenticeerde externe aanvallers toegang kunnen krijgen tot gevoelige informatie. Daarnaast is er een kwetsbaarheid in de databaseservice die het mogelijk maakt voor ongeauthenticeerde aanvallers met netwerktoegang om root-commando\u0027s uit te voeren via onvoldoende validatie van clientcertificaten bij TLS Verify Mode voor clustering.\n\nVerder zijn er diverse kwetsbaarheden ge\u00efdentificeerd door interne security reviews, waaronder problemen met improper resource control, authenticatie, input validatie, SQL-injectie, access control, pathname limitation, exception handling, out-of-bounds write, reachable assertions, null pointer dereference, uncaught exceptions, code injection, incorrect permission assignments, improper link resolutions en insecure handling of temporary files. Deze kwetsbaarheden kunnen leiden tot het omzeilen van toegangscontroles, het uitvoeren van ongeautoriseerde code, het verkrijgen van root-toegang en het blootstellen van gevoelige data. De kwetsbaarheden zijn intern ontdekt en worden aangepakt met software hardening updates.",
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        "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
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        "text": "Exposed Dangerous Method or Function",
        "title": "CWE-749"
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      {
        "category": "general",
        "text": "Out-of-bounds Write",
        "title": "CWE-787"
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      {
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        "text": "Use of Hard-coded Credentials",
        "title": "CWE-798"
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    "title": "Kwetsbaarheden verholpen in Cisco Expressway Series",
    "tracking": {
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          "title": "CWE-497"
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          "text": "A vulnerability in Cisco Expressway Series allows unauthenticated remote attackers to bypass authorization checks during Mobile and Remote Access provisioning, enabling them to access sensitive device information.",
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          "text": "Use of Hard-coded Credentials",
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          "text": "A vulnerability in Cisco Expressway Series database service allows unauthenticated remote attackers with network access to execute arbitrary root commands due to persistent cookies and insufficient client certificate validation when TLS Verify Mode is enabled for clustering.",
          "title": "Summary"
        }
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          "products": [
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      "title": "CVE-2026-76466"
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    {
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      "cwe": {
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        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s engineering teams performed an internal security review of multiple collaboration products, resulting in software hardening releases addressing vulnerabilities related to improper resource control, including CVE-2026-76473 and CWE-74.",
          "title": "Summary"
        }
      ],
      "product_status": {
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          "CSAFPID-2",
          "CSAFPID-3"
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      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76473 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76473.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76473"
    },
    {
      "cve": "CVE-2026-76474",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "description",
          "text": "Cisco engineering teams conducted an internal security review of multiple collaboration products, releasing software updates to address several authentication-related vulnerabilities including CVE-2026-76474 (CWE-287).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76474 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76474.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76474"
    },
    {
      "cve": "CVE-2026-76475",
      "cwe": {
        "id": "CWE-79",
        "name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "description",
          "text": "Cisco engineering teams performed an internal security review of multiple collaboration products, releasing software updates to address several vulnerabilities involving improper input neutralization during web page generation (CVE-2026-76475, CWE-79).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76475 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76475.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76475"
    },
    {
      "cve": "CVE-2026-76476",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "description",
          "text": "Cisco engineering teams released software hardening updates for multiple collaboration products addressing several CWE-20 improper input validation vulnerabilities, including CVE-2026-76476.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76476 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76476.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76476"
    },
    {
      "cve": "CVE-2026-76477",
      "cwe": {
        "id": "CWE-89",
        "name": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "description",
          "text": "Cisco engineering teams identified and addressed multiple SQL injection vulnerabilities (CWE-89) in several collaboration products through internal security reviews and subsequent software updates.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76477 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76477.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76477"
    },
    {
      "cve": "CVE-2026-76478",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s engineering teams conducted a thorough internal security review of multiple collaboration and communication products, resulting in software hardening releases addressing several improper access control vulnerabilities, including CVE-2026-76478 (CWE-284).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76478 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76478.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76478"
    },
    {
      "cve": "CVE-2026-76479",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "description",
          "text": "Cisco engineering teams conducted an internal security review of multiple collaboration products, releasing software updates to address several vulnerabilities including improper pathname limitation (CVE-2026-76479, CWE-22).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76479 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76479.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76479"
    },
    {
      "cve": "CVE-2026-76481",
      "cwe": {
        "id": "CWE-22",
        "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)",
          "title": "CWE-22"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
          "title": "CWE-79"
        },
        {
          "category": "other",
          "text": "Improper Neutralization of Special Elements used in an SQL Command (\u0027SQL Injection\u0027)",
          "title": "CWE-89"
        },
        {
          "category": "description",
          "text": "Cisco engineering teams performed an internal security review of multiple collaboration products, releasing software updates that address several vulnerabilities related to improper handling of exceptional conditions, including CVE-2026-76481 (CWE-703).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76481 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76481.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76481"
    },
    {
      "cve": "CVE-2026-76487",
      "cwe": {
        "id": "CWE-749",
        "name": "Exposed Dangerous Method or Function"
      },
      "notes": [
        {
          "category": "other",
          "text": "Exposed Dangerous Method or Function",
          "title": "CWE-749"
        },
        {
          "category": "description",
          "text": "A vulnerability in Cisco Unified Communications Manager and its Session Management Edition allows an unauthenticated remote attacker to bypass access controls by sending crafted HTTP requests, potentially gaining unauthorized network access.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76487 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76487.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76487"
    },
    {
      "cve": "CVE-2026-76490",
      "cwe": {
        "id": "CWE-787",
        "name": "Out-of-bounds Write"
      },
      "notes": [
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including out-of-bounds write issues (CVE-2026-76490, CWE-787).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76490 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76490.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76490"
    },
    {
      "cve": "CVE-2026-76491",
      "cwe": {
        "id": "CWE-617",
        "name": "Reachable Assertion"
      },
      "notes": [
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series team released a software hardening update addressing multiple internally discovered vulnerabilities, including CVE-2026-76491 related to reachable assertions under CWE-617.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76491 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76491.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76491"
    },
    {
      "cve": "CVE-2026-76492",
      "cwe": {
        "id": "CWE-476",
        "name": "NULL Pointer Dereference"
      },
      "notes": [
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series software team released a hardening update addressing multiple internally discovered vulnerabilities, including null pointer issues tracked under CVE-2026-76492 and CWE-476.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76492 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76492.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76492"
    },
    {
      "cve": "CVE-2026-76493",
      "cwe": {
        "id": "CWE-248",
        "name": "Uncaught Exception"
      },
      "notes": [
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including uncaught exceptions classified under CWE-248 and tracked by CVE-2026-76493.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76493 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76493.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76493"
    },
    {
      "cve": "CVE-2026-76494",
      "cwe": {
        "id": "CWE-94",
        "name": "Improper Control of Generation of Code (\u0027Code Injection\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series team released software hardening updates addressing multiple internally discovered vulnerabilities, including code injection flaws classified under CWE-94 and tracked as CVE-2026-76494.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76494 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76494.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76494"
    },
    {
      "cve": "CVE-2026-76495",
      "cwe": {
        "id": "CWE-732",
        "name": "Incorrect Permission Assignment for Critical Resource"
      },
      "notes": [
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including incorrect permission assignments (CVE-2026-76495, CWE-732).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76495 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76495.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76495"
    },
    {
      "cve": "CVE-2026-76496",
      "cwe": {
        "id": "CWE-59",
        "name": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)"
      },
      "notes": [
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities related to improper link resolutions, including CVE-2026-76496 classified under CWE-59.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76496 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76496.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.0,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76496"
    },
    {
      "cve": "CVE-2026-76497",
      "cwe": {
        "id": "CWE-377",
        "name": "Insecure Temporary File"
      },
      "notes": [
        {
          "category": "other",
          "text": "Insecure Temporary File",
          "title": "CWE-377"
        },
        {
          "category": "other",
          "text": "NULL Pointer Dereference",
          "title": "CWE-476"
        },
        {
          "category": "other",
          "text": "Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
          "title": "CWE-59"
        },
        {
          "category": "other",
          "text": "Reachable Assertion",
          "title": "CWE-617"
        },
        {
          "category": "other",
          "text": "Incorrect Permission Assignment for Critical Resource",
          "title": "CWE-732"
        },
        {
          "category": "other",
          "text": "Out-of-bounds Write",
          "title": "CWE-787"
        },
        {
          "category": "other",
          "text": "Uncaught Exception",
          "title": "CWE-248"
        },
        {
          "category": "other",
          "text": "Improper Control of Generation of Code (\u0027Code Injection\u0027)",
          "title": "CWE-94"
        },
        {
          "category": "description",
          "text": "Cisco\u0027s Expressway Series team conducted an internal security review resulting in software hardening releases that address multiple vulnerabilities, including insecure temporary file handling (CVE-2026-76497, CWE-377).",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-1",
          "CSAFPID-2",
          "CSAFPID-3"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-76497 | NCSC-NL Website",
          "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-76497.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.6,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-1",
            "CSAFPID-2",
            "CSAFPID-3"
          ]
        }
      ],
      "title": "CVE-2026-76497"
    }
  ]
}



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