CVE-2026-5402

Description

TLS protocol dissector heap overflow in Wireshark 4.6.0 to 4.6.4 allows denial of service and possible code execution

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://www.wireshark.org/security/wnpa-sec-2026-14.html ↗
• https://gitlab.com/wireshark/wireshark/-/issues/21090 ↗
• https://access.redhat.com/security/cve/CVE-2026-5402 ↗
• https://bugzilla.redhat.com/show_bug.cgi?id=2464038 ↗
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5402.json ↗