Heap-based Buffer Overflow Affecting wireshark package, versions <1:3.4.10-9.el9_8.5


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.38% (30th percentile)

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  • Snyk IDSNYK-ALMALINUX9-WIRESHARK-21160199
  • published17 Oct 2026
  • disclosed15 Oct 2026

Introduced: 15 Oct 2026

NewCVE-2026-76886  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 wireshark to version 1:3.4.10-9.el9_8.5 or higher.
This issue was patched in ALSA-2026:83546.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wireshark package and not the wireshark package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 relevant fixed versions and status.

C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

CVSS Base Scores

version 3.1