CVEvulnerability
CVE-2026-101014
5.5 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-09-28
- Last modified
- 2026-09-28
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 5.5 MEDIUM — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
- CVSS 3.1 ([email protected])
- 7.3 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-189, CWE-193
Description
A vulnerability was detected in Trusted Domain Project OpenDMARC up to 1.4.2. Affected by this vulnerability is the function opendmarc_util_cleanup in the library libopendmarc/opendmarc_util.c of the component DMARC Record Parser. Performing a manipulation results in off-by-one. The attack may be initiated remotely. The exploit is now public and may be used. The patch is named b3b1da9264bc80324094a27c71e7369bdedc62ae. To fix this issue, it is recommended to deploy a patch.
Related
Weakness · not in database (1)
Weakness · CWE (1)
- CWE-193 Off-by-one Error weakness
References
- https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae github.com
- https://github.com/trusteddomainproject/OpenDMARC/pull/188 github.com
- https://github.com/trusteddomainproject/OpenDMARC/pull/344 github.com
- https://vuldb.com/cve/CVE-2026-101014 vuldb.com
- https://vuldb.com/submit/917100 vuldb.com
- https://vuldb.com/vuln/410884 vuldb.com
- https://vuldb.com/vuln/410884/cti vuldb.com
- https://weitongli.com/share/opendmarc-cleanup-off-by-one.html weitongli.com