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Vulnerability · Published Feb 25, 2026 · Assigned by GitLab

CVE-2026-3201Improperly Controlled Sequential Memory Allocation in Wireshark

Medium 4.7

In plain English

A medium-severity security flaw in Wireshark from Wireshark Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.7Medium
Exploit odds (30 days)0.2%top 87.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

USB HID protocol dissector memory exhaustion in Wireshark 4.6.0 to 4.6.3 and 4.4.0 to 4.4.13 allows denial of service

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10wireshark1:4.4.2-4.el10_1.4ALSA-2026:9666
AlmaLinux:10wireshark-cli1:4.4.2-4.el10_1.4ALSA-2026:9666
AlmaLinux:10wireshark-devel1:4.4.2-4.el10_1.4ALSA-2026:9666
Alpine:v3.23wireshark4.6.4-r0ALPINE-CVE-2026-3201
Alpine:v3.24wireshark4.6.4-r0ALPINE-CVE-2026-3201
Debian:12wiresharkno fix listedDEBIAN-CVE-2026-3201
Debian:13wireshark4.4.14-0+deb13u1DEBIAN-CVE-2026-3201
Debian:14wireshark4.6.4-1DEBIAN-CVE-2026-3201
Rocky Linux:10wireshark1:4.4.2-4.el10_1.4RLSA-2026:9666
Ubuntu:24.04:LTSwiresharkno fix listedUBUNTU-CVE-2026-3201
Ubuntu:25.10wiresharkno fix listedUBUNTU-CVE-2026-3201
Ubuntu:26.04:LTSwiresharkno fix listedUBUNTU-CVE-2026-3201
Ubuntu:26.10wiresharkno fix listedUBUNTU-CVE-2026-3201

Affected products (as reported)

VendorProductVersions
Wireshark Foundation Wireshark 4.6.0 – before 4.6.44.4.0 – before 4.4.14

Weakness: CWE-1325 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

References