CVE-2026-101279

A security vulnerability has been detected in Trusted Domain Project OpenDMARC up to 1.4.2. This impacts an unknown function of the file libopendmarc/opendmarc_policy.c of the component DMARC Parser. The manipulation of the argument pct leads to integer overflow. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3 6.5 MEDIUM
CVSS v2.0 6.4 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:P

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://vuldb.com/cve/CVE-2026-101279
https://vuldb.com/submit/918280
https://vuldb.com/vuln/411036
https://vuldb.com/vuln/411036/cti
https://xuyongzhe-vt.github.io/share/dmarc-pct-integer-handling.html

Configurations

No configuration.

History

29 Sep 2026, 01:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-29 01:16

Updated : 2026-09-29 18:57

NVD link : CVE-2026-101279

Mitre link : CVE-2026-101279

CVE.ORG link : CVE-2026-101279

JSON object : View

Products Affected

No product.

CWE

CWE-189

Numeric Errors

CWE-190

Integer Overflow or Wraparound

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