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
mitreCNA
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: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
roundcubewebmail
1.6.0 ≤
𝑥
< 1.6.17
CNA
roundcubewebmail
1.7.0 ≤
𝑥
< 1.7.2
CNA
Common Weakness Enumeration
Vulnerability Media Exposure
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