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 Platforms

Weakness Type

CWE-122, CWE-122

References

• https://gitlab.com/wireshark/wireshark/-/issues/21090
• https://www.wireshark.org/security/wnpa-sec-2026-14.html
• 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