Skip to content
OpenAdvisories
High · 7.5 CVE-2026-76880 EUVD-2026-63176GHSA-fh6r-4w3g-qgmx

Out-of-bounds Write in Wireshark

Published Aug 19, 2026 · Updated Aug 20, 2026 · Assigned by GitLab

Description

RRC protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

Affected products

VendorProductAffectedFixed
Wireshark Foundation Wireshark 4.6.0 – < 4.6.8, 4.4.0 – < 4.4.18 4.6.8

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 4.6.9-1 —
Debian 13 wireshark 4.4.18-0+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 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
RHEL 10 wireshark +2 1:4.4.2-10.el10_2.8 RHSA-2026:84721
RHEL 9 wireshark +2 1:3.4.10-9.el9_8.5 RHSA-2026:83546
RHEL 8 wireshark +2 1:2.6.2-21.el8_10 RHSA-2026:83657

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 10 wireshark +2 1:4.4.2-10.el10_2.8 ALSA-2026:84721
AlmaLinux 9 wireshark +2 1:3.4.10-9.el9_8.5 ALSA-2026:83546
AlmaLinux 8 wireshark +2 1:2.6.2-21.el8_10 ALSA-2026:83657

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 10 wireshark +2 1:4.4.2-10.el10_2.8 RLSA-2026:98089, RLSA-2026:84721
Rocky Linux 9 wireshark 1:3.4.10-9.el9_8.5 RLSA-2026:97879, RLSA-2026:83546
Rocky Linux 9 wireshark-cli +1 1:3.4.10-14.el9_9 RLSA-2026:97879
Rocky Linux 8 wireshark 1:2.6.2-21.el8_10 RLSA-2026:83657
ReleasePackageFixed inAdvisory
SLES 15 SP7 wireshark 4.6.8-150700.21.14.1 SUSE-SU-2026:4379-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 wireshark 4.4.18-160000.1.1 SUSE-SU-2026:24013-1
SLES 16.0 wireshark 4.4.18-160000.1.1 SUSE-SU-2026:24013-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed wireshark 4.6.8-2.1 openSUSE-SU-2026:11579-1
openSUSE Leap 16.0 wireshark 4.4.18-160000.1.1 openSUSE-SU-2026:22014-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 wireshark-cli +1 1:4.6.8-1.amzn2023.0.1 ALAS2023-2026-2117

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 wireshark No fix yet —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 10 wireshark +2 1:4.4.2-10.0.1.el10_2.8 ELSA-2026-84721
Oracle Linux 9 wireshark +2 1:3.4.10-9.el9_8.5 ELSA-2026-83546
Oracle Linux 8 wireshark +2 1:2.6.2-21.el8_10 ELSA-2026-83657

Advisories 20

References