Vulnerability-Lookup

CVE-2026-85234 (GCVE-0-2026-85234)

Vulnerability from cvelistv5 – Published: 2026-09-15 17:58 – Updated: 2026-10-13 15:12

Title

Tftp: tftp-hpa: denial of service due to out-of-bounds read/write in remap engine

Summary

A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-15 19:07 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat CNA under the redhat root

CNA scorecard B 82/100 over 1069 records in the last 180 days details

References

6 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:78952	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:80663	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:82280	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-85234	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2460997	issue-trackingx_refsource_REDHAT
https://git.kernel.org/pub/scm/network/tftp/tftp-…

Impacted products

6 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 10	Unaffected: 0:5.2-50.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.2
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 0:5.2-28.el8_10 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:5.2-40.el9_8.1 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Hardened Images	cpe:/a:redhat:hummingbird:1

Date Public

2026-09-15 15:36

Credits

This issue was discovered by Found by AISLE in partnership with Red Hat.

Show details on NVD website

JSON

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                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:78952"
            },
            {
              "name": "RHSA-2026:80663",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:80663"
            },
            {
              "name": "RHSA-2026:82280",
              "tags": [
                "vendor-advisory",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2026:82280"
            },
            {
              "tags": [
                "vdb-entry",
                "x_refsource_REDHAT"
              ],
              "url": "https://access.redhat.com/security/cve/CVE-2026-85234"
            },
            {
              "name": "RHBZ#2460997",
              "tags": [
                "issue-tracking",
                "x_refsource_REDHAT"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460997"
            },
            {
              "url": "https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5ce052a1c124acd0661233ec7918327"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-04-23T01:23:46.000Z",
              "value": "Reported to Red Hat."
            },
            {
              "lang": "en",
              "time": "2026-09-15T15:36:00.000Z",
              "value": "Made public."
            }
          ],
          "title": "Tftp: tftp-hpa: denial of service due to out-of-bounds read/write in remap engine",
          "workarounds": [
            {
              "lang": "en",
              "value": "To mitigate this issue, avoid enabling filename remapping with the `m/-map-file` option for the `in.tftpd` service unless strictly necessary. If filename remapping is required, ensure that any inverse (`~`) and abort (`a`) rules in the remap file do not include a non-empty custom error message. Changes to the `in.tftpd` configuration may require restarting the service to take effect."
            }
          ],
          "x_generator": {
            "engine": "cvelib 1.8.0"
          },
          "x_redhatCweChain": "CWE-125: Out-of-bounds Read"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "assignerShortName": "redhat",
        "cveId": "CVE-2026-85234",
        "datePublished": "2026-09-15T17:58:51.667Z",
        "dateReserved": "2026-09-03T14:57:22.051Z",
        "dateUpdated": "2026-10-13T15:12:01.203Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

ALSA-2026:78952 (CVE-2026-85234)

Vulnerability from osv_almalinux – Published: 2026-10-08 00:00 – Updated: 2026-10-09 07:29 – Source website

Summary

Moderate: tftp security update

Details

The Trivial File Transfer Protocol (TFTP) is typically used only for booting diskless workstations. The tftp packages include the tftp and tftp-server subpackages. The tftp subpackage provides the user interface for TFTP and the tftp-server subpackage provides the server. This allows users to transfer files to and from a remote machine.

Security Fix(es):

tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine (CVE-2026-85234)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:78952	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-85234	REPORT
	https://bugzilla.redhat.com/2460997	REPORT
	https://errata.almalinux.org/8/ALSA-2026-78952.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "tftp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2-28.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "tftp-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2-28.el8_10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The Trivial File Transfer Protocol (TFTP) is typically used only for booting diskless workstations. The tftp packages include the tftp and tftp-server subpackages. The tftp subpackage provides the user interface for TFTP and the tftp-server subpackage provides the server. This allows users to transfer files to and from a remote machine.  \n\nSecurity Fix(es):  \n\n  * tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine (CVE-2026-85234)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:78952",
  "modified": "2026-10-09T07:29:11Z",
  "published": "2026-10-08T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:78952"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-85234"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2460997"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2026-78952.html"
    }
  ],
  "related": [
    "CVE-2026-85234"
  ],
  "schema_version": "1.7.0",
  "summary": "Moderate: tftp security update",
  "upstream": [
    "CVE-2026-85234"
  ]
}

ALSA-2026:80663 (CVE-2026-85234)

Vulnerability from osv_almalinux – Published: 2026-10-12 00:00 – Updated: 2026-10-13 09:20 – Source website

Summary

Moderate: tftp security update

Details

Security Fix(es):

tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine (CVE-2026-85234)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:80663	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-85234	REPORT
	https://bugzilla.redhat.com/2460997	REPORT
	https://errata.almalinux.org/9/ALSA-2026-80663.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "tftp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2-40.el9_8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "tftp-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2-40.el9_8.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The Trivial File Transfer Protocol (TFTP) is typically used only for booting diskless workstations. The tftp packages include the tftp and tftp-server subpackages. The tftp subpackage provides the user interface for TFTP and the tftp-server subpackage provides the server. This allows users to transfer files to and from a remote machine.  \n\nSecurity Fix(es):  \n\n  * tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine (CVE-2026-85234)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:80663",
  "modified": "2026-10-13T09:20:13Z",
  "published": "2026-10-12T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:80663"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-85234"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2460997"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2026-80663.html"
    }
  ],
  "related": [
    "CVE-2026-85234"
  ],
  "schema_version": "1.7.0",
  "summary": "Moderate: tftp security update",
  "upstream": [
    "CVE-2026-85234"
  ]
}

ALSA-2026:82280 (CVE-2026-85234)

Vulnerability from osv_almalinux – Published: 2026-10-13 00:00 – Updated: 2026-10-14 09:18 – Source website

Summary

Moderate: tftp security update

Details

Security Fix(es):

tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine (CVE-2026-85234)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2026:82280	ADVISORY
	https://access.redhat.com/security/cve/CVE-2026-85234	REPORT
	https://bugzilla.redhat.com/2460997	REPORT
	https://errata.almalinux.org/10/ALSA-2026-82280.html	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "tftp"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2-50.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:10",
        "name": "tftp-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2-50.el10_2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "The Trivial File Transfer Protocol (TFTP) is typically used only for booting diskless workstations. The tftp packages include the tftp and tftp-server subpackages. The tftp subpackage provides the user interface for TFTP and the tftp-server subpackage provides the server. This allows users to transfer files to and from a remote machine.  \n\nSecurity Fix(es):  \n\n  * tftp: tftp-hpa: Denial of Service due to out-of-bounds read/write in remap engine (CVE-2026-85234)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:82280",
  "modified": "2026-10-14T09:18:52Z",
  "published": "2026-10-13T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:82280"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-85234"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2460997"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/10/ALSA-2026-82280.html"
    }
  ],
  "related": [
    "CVE-2026-85234"
  ],
  "schema_version": "1.7.0",
  "summary": "Moderate: tftp security update",
  "upstream": [
    "CVE-2026-85234"
  ]
}

FKIE_CVE-2026-85234

Vulnerability from fkie_nvd - Published: 2026-09-15 18:19 - Updated: 2026-10-13 16:17

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:78952
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:80663
	secalert@redhat.com	https://access.redhat.com/errata/RHSA-2026:82280
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-85234
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2460997
	secalert@redhat.com	https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5ce052a1c124acd0661233ec7918327

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:10.2"
          ],
          "defaultStatus": "affected",
          "packageName": "tftp",
          "product": "Red Hat Enterprise Linux 10",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:5.2-50.el10_2",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:8::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "tftp",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:5.2-28.el8_10",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:enterprise_linux:9::appstream"
          ],
          "defaultStatus": "affected",
          "packageName": "tftp",
          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "0:5.2-40.el9_8.1",
              "versionType": "rpm"
            }
          ]
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
          ],
          "defaultStatus": "unknown",
          "packageName": "tftp",
          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "affected",
          "packageName": "tftp",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:hummingbird:1"
          ],
          "defaultStatus": "unaffected",
          "packageName": "erlang27",
          "product": "Red Hat Hardened Images",
          "vendor": "Red Hat"
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service."
    }
  ],
  "id": "CVE-2026-85234",
  "lastModified": "2026-10-13T16:17:23.817",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-85234",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-15T19:07:11.649679Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-15T18:19:34.927",
  "references": [
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:78952"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:80663"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2026:82280"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/security/cve/CVE-2026-85234"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460997"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5ce052a1c124acd0661233ec7918327"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    }
  ]
}

GHSA-RXQQ-3MGH-V3M7

Vulnerability from github – Published: 2026-09-15 18:32 – Updated: 2026-10-13 18:30

Details

A flaw was found in tftp-hpa. When the in.tftpd remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the genmatchstring() function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.

Severity

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-85234"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-15T18:19:34Z",
    "severity": "HIGH"
  },
  "details": "A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.",
  "id": "GHSA-rxqq-3mgh-v3m7",
  "modified": "2026-10-13T18:30:25Z",
  "published": "2026-09-15T18:32:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-85234"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:78952"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:80663"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2026:82280"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2026-85234"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460997"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=4b493532f5ce052a1c124acd0661233ec7918327"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

RHSA-2026:78952

Vulnerability from csaf_opensuse - Published: 2026-10-08 09:09 - Updated: 2026-10-13 23:46

Summary

Red Hat Security Advisory: tftp security update

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2026-85234.

CVE-2026-85234

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Fixed: 21 products

https://access.redhat.com/errata/RHSA-2026:78952

Open the full advisory

RHSA-2026:80663

Vulnerability from csaf_opensuse - Published: 2026-10-12 00:00 - Updated: 2026-10-17 09:13

Summary

security update for tftp

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2026-85234.

CVE-2026-85234

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 2 products

Open the full advisory

RHSA-2026:82280

Vulnerability from csaf_opensuse - Published: 2026-10-13 00:00 - Updated: 2026-10-18 15:16

Summary

security update for tftp

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2026-85234.

CVE-2026-85234

7.5 (High)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Recommended: 2 products

Open the full advisory

UBUNTU-CVE-2026-85234 (CVE-2026-85234)

Vulnerability from osv_ubuntu – Published: 2026-09-15 18:19 – Updated: 2026-10-17 09:54 – Source website

Details

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-85234	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-85234	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.2-7ubuntu3.1"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.2-7ubuntu3.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.2-7ubuntu3.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2-7ubuntu3",
        "5.2-7ubuntu3.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.2+20150808-1ubuntu1.16.04.1"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.2+20150808-1ubuntu1.16.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.2+20150808-1ubuntu1.16.04.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2+20140608-3ubuntu1",
        "5.2+20150808-1ubuntu1",
        "5.2+20150808-1ubuntu1.16.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.2+20150808-1ubuntu3"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.2+20150808-1ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.2+20150808-1ubuntu3?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2+20150808-1ubuntu3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.2+20150808-1ubuntu4"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.2+20150808-1ubuntu4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.2+20150808-1ubuntu4?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2+20150808-1ubuntu3",
        "5.2+20150808-1ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.2+20150808-1.2build2"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.2+20150808-1.2build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.2+20150808-1.2build2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2+20150808-1.2build1",
        "5.2+20150808-1.2build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.2+20150808-1.4build1"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.2+20150808-1.4build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.2+20150808-1.4build1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2+20150808-1.4",
        "5.2+20150808-1.4build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.4-2"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.4-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.4-2?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3+20251209-2",
        "5.4-1",
        "5.4-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "tftp-hpa",
            "binary_version": "5.3+20251209-2"
          },
          {
            "binary_name": "tftpd-hpa",
            "binary_version": "5.3+20251209-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "tftp-hpa",
        "purl": "pkg:deb/ubuntu/tftp-hpa@5.3+20251209-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.2+20240610-3",
        "5.3+20251110-1",
        "5.3+20251116-1",
        "5.3+20251209-1",
        "5.3+20251209-2"
      ]
    }
  ],
  "aliases": [],
  "details": "A flaw was found in tftp-hpa. When the `in.tftpd` remap engine processes an inverse remap rule that also aborts with a non-empty custom error message, it can pass invalid match offsets to the `genmatchstring()` function. This leads to out-of-bounds read/write operations. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted request, causing the daemon to crash and resulting in a denial of service.",
  "id": "UBUNTU-CVE-2026-85234",
  "modified": "2026-10-17T09:54:13Z",
  "published": "2026-09-15T18:19:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-85234"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-85234"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-85234"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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UBUNTU-CVE-2026-85234 (CVE-2026-85234)

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