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OpenAdvisories
High · 7.8 CVE-2026-5403 EUVD-2026-26459GHSA-fp9p-ww3j-hpfw

Heap-based Buffer Overflow in Wireshark

Published Apr 30, 2026 · Updated Jul 15, 2026 · Assigned by GitLab

Description

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

Affected products

VendorProductAffectedFixed
Wireshark Foundation Wireshark 4.6.0 – < 4.6.5, 4.4.0 – < 4.4.15 4.6.5

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 wireshark 4.6.5-1 —
Debian 13 wireshark 4.4.15-0+deb13u1 —
Debian 12 wireshark No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 wireshark No fix yet —
Ubuntu 26.04 LTS wireshark No fix yet —
Ubuntu 25.10 wireshark No fix yet —
Ubuntu 24.04 LTS wireshark No fix yet —
Show 5 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 22.04 LTS wireshark No fix yet —
Ubuntu Pro 20.04 LTS wireshark No fix yet —
Ubuntu Pro 18.04 LTS wireshark No fix yet —
Ubuntu Pro 16.04 LTS wireshark No fix yet —
Ubuntu Pro 14.04 LTS wireshark No fix yet —
ReleasePackageFixed inAdvisory
SLES 15 SP7 wireshark 4.6.7-150700.21.11.1 SUSE-SU-2026:3501-1
SLES 12 SP5 wireshark 2.4.16-48.69.1 SUSE-SU-2026:2969-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed wireshark 4.6.5-1.1 openSUSE-SU-2026:10686-1

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 wireshark No fix yet —

Advisories 5

References