7.5

CVE-2026-101014

Exploit

Trusted Domain Project OpenDMARC DMARC Record opendmarc_util.c opendmarc_util_cleanup off-by-one

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerTrusted Domain Project
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Produkt OpenDMARC
Version 1.4.0
Status affected
Version 1.4.1
Status affected
Version 1.4.2
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.31% 0.219
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@vuldb.com 5.5 0 0
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
cna@vuldb.com 7.3 3.9 3.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
cna@vuldb.com 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
CWE-193 Off-by-one Error

A product calculates or uses an incorrect maximum or minimum value that is 1 more, or 1 less, than the correct value.

https://vuldb.com/vuln/410884
https://vuldb.com/vuln/410884/cti
https://vuldb.com/cve/CVE-2026-101014
https://vuldb.com/submit/917100
https://github.com/trusteddomainproject/OpenDMARC/pull/188
https://github.com/trusteddomainproject/OpenDMARC/pull/344
https://weitongli.com/share/opendmarc-cleanup-off-by-one.html
https://github.com/trusteddomainproject/OpenDMARC/commit/b3b1da9264bc80324094a27c71e7369bdedc62ae