CVE-2026-62642

EUVD-2026-43747
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, an infinite loop was discovered in the TNEF decoder, which may lead to denial of service upon opening an email with a TNEF attachment.
Infinite Loop
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
4.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 41.81%
Affected Products (NVD)
VendorProductVersion
roundcubewebmail
1.6.0 ≤
𝑥
< 1.6.17
roundcubewebmail
1.7.0 ≤
𝑥
< 1.7.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
roundcube
bookworm
vulnerable
bookworm (security)
1.6.5+dfsg-1+deb12u10
fixed
bullseye
vulnerable
bullseye (security)
1.4.15+dfsg.1-1+deb11u10
fixed
forky
1.6.18+dfsg-1
fixed
sid
1.6.18+dfsg-1
fixed
trixie
vulnerable
trixie (security)
1.6.17+dfsg-0+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
roundcube
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
Common Weakness Enumeration
References
https://github.com/roundcube/roundcubemail/commit/132ac8dd5a55c8466be12de1daf84355697ffa89
https://github.com/roundcube/roundcubemail/commit/877269c79359d959a94f13c9070cab0f3389c193
https://github.com/roundcube/roundcubemail/commit/a007321346380136b3de2bd75b486b04f63c0d38
https://github.com/roundcube/roundcubemail/commit/fb952956c6eaf29e963f1a718d028d66e7957ce0
https://github.com/roundcube/roundcubemail/releases/tag/1.6.17
https://github.com/roundcube/roundcubemail/releases/tag/1.7.2
https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2