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OpenAdvisories
Medium · 5.5 CVE-2026-7378 EUVD-2026-26312GHSA-wf2x-x8pr-mjh7

Heap-based Buffer Overflow in Wireshark

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

Description

Crash in sharkd 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

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
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 wireshark 4.4.17-160000.1.1 SUSE-SU-2026:23147-1, SUSE-SU-2026:23124-1
SLES 16.0 wireshark 4.4.17-160000.1.1 SUSE-SU-2026:23147-1, SUSE-SU-2026:23124-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed wireshark 4.6.5-1.1 openSUSE-SU-2026:10686-1
openSUSE Leap 16.0 wireshark 4.4.17-160000.1.1 openSUSE-SU-2026:21534-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 wireshark-cli +1 1:4.6.6-1.amzn2023.0.1 ALAS2023-2026-1904

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 wireshark No fix yet —

Advisories 8

References