CVE-2026-100889CWE-193

CVE-2026-100889

High · published September 28, 2026

CVSS v3.1
7.3
EPSS
0%
Percentile
21.5
In the wild
Unconfirmed
What it is

A vulnerability was detected in Trusted Domain Project OpenDKIM up to 2.11.0. Affected is the function dkim_qp_decode of the file util.c of the component Decoder. The manipulation results in off-by-one. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

The record
Technical detail
CVSS v3.1
7.3 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
6.9 · 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
EPSS
0.00300 · 21.5th percentile
Weakness
CWE-193 · Off-by-one Error
Published
2026-09-28T04:16Z
References (5)
https://vuldb.com/submit/917063 · [email protected]https://vuldb.com/vuln/410839 · [email protected]https://vuldb.com/vuln/410839/cti · [email protected]https://weitongli.com/share/opendkim-qp-off-by-one.html · [email protected]https://vuldb.com/cve/CVE-2026-100889 · [email protected]
EPSS history
Timeline
  • 29 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 27 SEP 23:45Z
    Trusted Domain Project OpenDKIM Decoder util.c dkim_qp_decode off-by-one
    cvelistv5