CVE-2026-5403

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

Score

CVSS 3.1 7.8 High

Status

Modified - cve@gitlab.com

Published

2026-05-01

Last modified

2026-07-15

Weaknesses

CWE-122, CWE-787

Affected products

• Enterprise Linux (Redhat)
• Wireshark (Wireshark)
• Wireshark (Wireshark Foundation)

References

• https://gitlab.com/wireshark/wireshark/-/issues/21103
• https://www.wireshark.org/security/wnpa-sec-2026-16.html
• https://access.redhat.com/security/cve/CVE-2026-5403
• https://bugzilla.redhat.com/show_bug.cgi?id=2464271
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5403.json