Common Weakness Enumeration

CWE-124

Allowed

Buffer Underwrite ('Buffer Underflow')

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer.

80 vulnerabilities reference this CWE, most recent first.

CVE-2021-38575 (GCVE-0-2021-38575)

Vulnerability from cvelistv5 – Published: 2021-12-01 00:00 – Updated: 2025-11-03 19:26
VLAI
Summary
NetworkPkg/IScsiDxe has remotely exploitable buffer overflows.
Severity
No CVSS data available.
CWE
  • CWE-124 - A case of CWE-124, CWE-680, and CWE-252 is occurring in NetworkPkg/IScsiDxe.
Assigner
TianoCore CNA under the mitre root
CNA scorecard – unranked: 0 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version
TianoCore EDK II Affected: unspecified , ≤ edk2-stable202105 (custom)
Create a notification for this product.
Show details on NVD website
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CVE-2021-36064 (GCVE-0-2021-36064)

Vulnerability from cvelistv5 – Published: 2021-09-01 14:33 – Updated: 2025-11-03 19:26
VLAI
Title
XMP Toolkit SDK SVG_Adapter ParseFullNS Buffer Underflow
Summary
XMP Toolkit version 2020.1 (and earlier) is affected by a Buffer Underflow vulnerability which could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-124 - Buffer Underwrite ('Buffer Underflow') (CWE-124)
Assigner
adobe CNA under the mitre root
CNA scorecard C 75/100 over 803 records in the last 180 days details
References
Impacted products
Vendor Product Version
Adobe XMP Toolkit Affected: unspecified , ≤ 2020.1 (custom)
Affected: unspecified , ≤ None (custom)
Create a notification for this product.
Date Public
2021-08-16 00:00
Show details on NVD website
To clipboard 

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CVE-2020-9086 (GCVE-0-2020-9086)

Vulnerability from cvelistv5 – Published: 2024-12-27 09:40 – Updated: 2024-12-27 15:06
VLAI
Summary
There is a buffer error vulnerability in some Huawei product. An unauthenticated attacker may send special UPNP message to the affected products. Due to insufficient input validation of some value, successful exploit may cause some service abnormal. (Vulnerability ID: HWPSIRT-2017-08234) This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9086.
Severity
4.3 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-27 15:06 UTC
CWE
  • CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
huawei CNA under the mitre root
CNA scorecard D 57/100 over 60 records in the last 180 days details
References
Impacted products
Vendor Product Version
Huawei HUAWEI 4G Router B612 Affected: B612s-25dTCPU-V100R001B192D03SP00C234
Affected: B612s-25dTCPU-V100R001B192D03SP00C287
Affected: B612s-25dTCPU-V100R001B192D05SP00C00
Create a notification for this product.
Show details on NVD website
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CVE-2018-15361 (GCVE-0-2018-15361)

Vulnerability from cvelistv5 – Published: 2019-03-05 15:00 – Updated: 2024-09-16 17:07
VLAI
Summary
UltraVNC revision 1198 has a buffer underflow vulnerability in VNC client code, which can potentially result in code execution. This attack appears to be exploitable via network connectivity. This vulnerability has been fixed in revision 1199.
Severity
No CVSS data available.
CWE
Assigner
Kaspersky CNA under the mitre root
CNA scorecard – unranked: 9 records in the last 180 days, 10 needed details
References
Impacted products
Vendor Product Version
UltraVNC UltraVNC Affected: 1.2.2.3
Create a notification for this product.
Date Public
2019-03-01 00:00
Show details on NVD website
To clipboard 

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CVE-2018-5388 (GCVE-0-2018-5388)

Vulnerability from cvelistv5 – Published: 2018-05-31 00:00 – Updated: 2024-08-05 05:33
VLAI
Summary
In stroke_socket.c in strongSwan before 5.6.3, a missing packet length check could allow a buffer underflow, which may lead to resource exhaustion and denial of service while reading from the socket.
Severity
No CVSS data available.
CWE
Assigner
certcc CNA under the mitre root
CNA scorecard E 42/100 over 156 records in the last 180 days details
References
Impacted products
Vendor Product Version
strongSwan strongSwan Affected: 5.6.3 , < 5.6.3 (custom)
Create a notification for this product.
Date Public
2018-05-22 00:00
Credits
Thanks to Kevin Backhouse for reporting this vulnerability.
Show details on NVD website
To clipboard 

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          {
            "name": "openSUSE-SU-2020:0403",
            "tags": [
              "vendor-advisory",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/172833/strongSwan-VPN-Charon-Server-Buffer-Overflow.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "strongSwan",
          "vendor": "strongSwan",
          "versions": [
            {
              "lessThan": "5.6.3",
              "status": "affected",
              "version": "5.6.3",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Thanks to Kevin Backhouse for reporting this vulnerability."
        }
      ],
      "datePublic": "2018-05-22T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "In stroke_socket.c in strongSwan before 5.6.3, a missing packet length check could allow a buffer underflow, which may lead to resource exhaustion and denial of service while reading from the socket."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-124",
              "description": "CWE-124",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-06-12T00:00:00.000Z",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "name": "VU#338343",
          "tags": [
            "third-party-advisory"
          ],
          "url": "http://www.kb.cert.org/vuls/id/338343"
        },
        {
          "name": "GLSA-201811-16",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://security.gentoo.org/glsa/201811-16"
        },
        {
          "url": "https://git.strongswan.org/?p=strongswan.git%3Ba=commitdiff%3Bh=0acd1ab4"
        },
        {
          "name": "104263",
          "tags": [
            "vdb-entry"
          ],
          "url": "http://www.securityfocus.com/bid/104263"
        },
        {
          "name": "USN-3771-1",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://usn.ubuntu.com/3771-1/"
        },
        {
          "name": "DSA-4229",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4229"
        },
        {
          "name": "openSUSE-SU-2019:2594",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00077.html"
        },
        {
          "name": "openSUSE-SU-2019:2598",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00001.html"
        },
        {
          "name": "openSUSE-SU-2020:0403",
          "tags": [
            "vendor-advisory"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html"
        },
        {
          "url": "http://packetstormsecurity.com/files/172833/strongSwan-VPN-Charon-Server-Buffer-Overflow.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2018-5388",
    "datePublished": "2018-05-31T00:00:00.000Z",
    "dateReserved": "2018-01-12T00:00:00.000Z",
    "dateUpdated": "2024-08-05T05:33:44.315Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-279F-3W5R-54F5

Vulnerability from github – Published: 2026-10-13 15:32 – Updated: 2026-10-13 15:32
VLAI
Details

ImageMagick before 7.1.2-33 and 6.9.13-58 contains a heap buffer underwrite vulnerability in DecodeImage() in coders/pict.c on 32-bit builds due to pointer arithmetic overflow. Attackers can supply a crafted PICT file with maximized row, column and bytes-per-line values to bypass bounds checks and write up to 128 controlled bytes below the heap buffer, causing crashes or code execution.

Severity
5.6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
6.3 (Medium)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-109964"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-124"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-13T14:17:35Z",
    "severity": "MODERATE"
  },
  "details": "ImageMagick before 7.1.2-33 and 6.9.13-58 contains a heap buffer underwrite vulnerability in DecodeImage() in coders/pict.c on 32-bit builds due to pointer arithmetic overflow. Attackers can supply a crafted PICT file with maximized row, column and bytes-per-line values to bypass bounds checks and write up to 128 controlled bytes below the heap buffer, causing crashes or code execution.",
  "id": "GHSA-279f-3w5r-54f5",
  "modified": "2026-10-13T15:32:24Z",
  "published": "2026-10-13T15:32:24Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-mqmp-r5jh-jx7w"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109964"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/commit/63dde0cf281383ab69432b88305f7dcd6a8ce900"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick6/commit/c18c5d5fb7f1d87ddbe0a02e9d1207c89b24588c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/blob/7.1.2-32/coders/pict.c#L503-L540"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/imagemagick-before-7.1.2-33-and-6.9.13-58-heap-buffer-underwrite-in-pict-decoder"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

GHSA-38H5-57RQ-7MJ8

Vulnerability from github – Published: 2026-03-25 18:31 – Updated: 2026-03-25 18:31
VLAI
Details

A vulnerability in the bootloader of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches, Cisco Catalyst ESS9300 Embedded Series Switches, Cisco Catalyst IE9310 and IE9320 Rugged Series Switches, and Cisco IE3500 and IE3505 Rugged Series Switches could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to an affected device to execute arbitrary code at boot time and break the chain of trust.

This vulnerability is due to insufficient validation of software at boot time. An attacker could exploit this vulnerability by manipulating the loaded binaries on an affected device to bypass some of the integrity checks that are performed during the boot process. A successful exploit could allow the attacker to execute code that bypasses the requirement to run Cisco-signed images.

Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates because this vulnerability allows an attacker to bypass a major security feature of a device.

Severity
6.1 (Medium)
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-20104"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-124"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-03-25T16:16:14Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability in the bootloader of Cisco IOS XE Software for Cisco Catalyst 9200 Series Switches, Cisco Catalyst ESS9300 Embedded Series Switches, Cisco Catalyst IE9310 and IE9320 Rugged Series Switches, and Cisco IE3500 and IE3505 Rugged Series Switches could allow an authenticated, local attacker with level-15 privileges or an unauthenticated attacker with physical access to an affected device to execute arbitrary code at boot time and break the chain of trust.\n\n This vulnerability is due to insufficient validation of software at boot time. An attacker could exploit this vulnerability by manipulating the loaded binaries on an affected device to bypass some of the integrity checks that are performed during the boot process. A successful exploit could allow the attacker to execute code that bypasses the requirement to run Cisco-signed images.\n\n Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates because this vulnerability allows an attacker to bypass a major security feature of a device.",
  "id": "GHSA-38h5-57rq-7mj8",
  "modified": "2026-03-25T18:31:47Z",
  "published": "2026-03-25T18:31:47Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20104"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xe-secureboot-bypass-B6uYxYSZ"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-45FH-4474-XC77

Vulnerability from github – Published: 2026-05-15 15:30 – Updated: 2026-06-30 03:36
VLAI
Details

A buffer underflow vulnerability has been identified in the ogg123 utility from the vorbis-tools 1.4.3 package in function remotethread in remote.c. This vulnerability occurs in the remote control functionality when processing malformed input, leading to a stack buffer underflow that can cause application crashes and potentially allow code execution.

Severity
8.2 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-34253"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-124"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-15T15:16:51Z",
    "severity": "HIGH"
  },
  "details": "A buffer underflow vulnerability has been identified in the ogg123 utility from the vorbis-tools 1.4.3 package in function remotethread in remote.c. This vulnerability occurs in the remote control functionality when processing malformed input, leading to a stack buffer underflow that can cause application crashes and potentially allow code execution.",
  "id": "GHSA-45fh-4474-xc77",
  "modified": "2026-06-30T03:36:43Z",
  "published": "2026-05-15T15:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-34253"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-34253"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2477925"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xiph/vorbis-tools/archive/refs/tags/v1.4.3.tar.gz"
    },
    {
      "type": "WEB",
      "url": "https://github.com/xiph/vorbis-tools/blob/0b3fbf42eb3897d32f4a75baa2dc915a4ca45e8e/ogg123/remote.c#L153"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.xiph.org/xiph/vorbis-tools/-/work_items/2332"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34253.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-48CG-HM45-PP65

Vulnerability from github – Published: 2025-03-11 18:32 – Updated: 2025-03-11 18:32
VLAI
Details

Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.

Severity
8.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-27439"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-124"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-11T18:15:36Z",
    "severity": "HIGH"
  },
  "details": "Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.",
  "id": "GHSA-48cg-hm45-pp65",
  "modified": "2025-03-11T18:32:21Z",
  "published": "2025-03-11T18:32:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27439"
    },
    {
      "type": "WEB",
      "url": "https://www.zoom.com/en/trust/security-bulletin/zsb-25011"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-4CR7-R8F8-3J39

Vulnerability from github – Published: 2023-09-25 18:30 – Updated: 2025-11-04 21:30
VLAI
Details

A heap-based buffer overflow vulnerability exists in the create_png_object functionality of Accusoft ImageGear 20.1. A specially crafted malformed file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.

Severity
7.0 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-32614"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-124",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-09-25T16:15:13Z",
    "severity": "CRITICAL"
  },
  "details": "A heap-based buffer overflow vulnerability exists in the create_png_object functionality of Accusoft ImageGear 20.1. A specially crafted malformed file can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.",
  "id": "GHSA-4cr7-r8f8-3j39",
  "modified": "2025-11-04T21:30:39Z",
  "published": "2023-09-25T18:30:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-32614"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1749"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1749"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation
Requirements

Choose a language that is not susceptible to these issues.

Mitigation
Implementation

All calculated values that are used as index or for pointer arithmetic should be validated to ensure that they are within an expected range.

No CAPEC attack patterns related to this CWE.

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