CVE-2026-5403

EUVD-2026-26459
SBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitLabCNA
7.8 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.71%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
wiresharkwireshark
4.6.0 ≤
𝑥
< 4.6.5
CNA
wiresharkwireshark
4.4.0 ≤
𝑥
< 4.4.15
CNA
Debian logo
Debian Releases
Debian Product
Codename
wireshark
bookworm
no-dsa
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
vulnerable
sid
vulnerable
trixie
no-dsa
trixie (security)
vulnerable
Common Weakness Enumeration
References
https://gitlab.com/wireshark/wireshark/-/issues/21103
https://www.wireshark.org/security/wnpa-sec-2026-16.html