CVE-2026-40686

EUVD-2026-26444
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ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
Affected Products (NVD)
VendorProductVersion
eximexim
𝑥
< 4.99.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
exim4
bookworm
4.96-15+deb12u9
fixed
bookworm (security)
4.96-15+deb12u10
fixed
bullseye
postponed
bullseye (security)
vulnerable
forky
4.99.4-1
fixed
sid
4.99.4-1
fixed
trixie
4.98.2-1+deb13u2
fixed
trixie (security)
4.98.2-1+deb13u3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
exim4
bionic
ignored
focal
Fixed 4.93-13ubuntu1.12+esm1
released
jammy
Fixed 4.95-4ubuntu2.7
released
noble
Fixed 4.97-4ubuntu4.4
released
questing
Fixed 4.98.2-1ubuntu2.1
released
resolute
Fixed 4.99.1-1ubuntu1.1
released
trusty
ignored
xenial
ignored
Common Weakness Enumeration
References
https://code.exim.org/exim/exim/commit/f2570bde16fb4d4a1242ff363a4c4eecf6372efc
https://exim.org/static/doc/security/CVE-2026-40686.txt
https://exim.org/static/doc/security/cve-2026-04.1/CVE2026-40686.assessment
https://www.openwall.com/lists/oss-security/2026/04/30/21