Not analysed yet
We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 7.5 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA (mitre) |
- CISA KEV Not listed.
- EPSS 0.78, the 99th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
Sources
References from the CNA
- exim.org
- github.com/Exim/exim/wiki/EximSecurity
- www.exim.org/static/doc/security/CVE-2025-26794.txt
- code.exim.org/exim/exim/commit/bfe32b5c6ea033736a26da8421513206db9fe305
- bugzilla.suse.com/show_bug.cgi?id=1237424
- github.com/NixOS/nixpkgs/pull/383926
- github.com/openbsd/ports/commit/584d2c49addce9ca0ae67882cc16969104d7f82d
- exim.org/static/doc/security/EXIM-Security-2025-12-09.1/report.txt