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Vulnerability · Published Dec 30, 2021 · Assigned by GitLab

CVE-2021-4181

High 7.5

In plain English

A high-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 4.1% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)4.1%top 9.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Crash in the Sysdig Event dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20wireshark3.4.11-r0ALPINE-CVE-2021-4181
Alpine:v3.21wireshark3.4.11-r0ALPINE-CVE-2021-4181
Alpine:v3.22wireshark3.4.11-r0ALPINE-CVE-2021-4181
Alpine:v3.23wireshark3.4.11-r0ALPINE-CVE-2021-4181
Alpine:v3.24wireshark3.4.11-r0ALPINE-CVE-2021-4181
Debian:12wireshark3.6.2-1DEBIAN-CVE-2021-4181
Debian:13wireshark3.6.2-1DEBIAN-CVE-2021-4181
Debian:14wireshark3.6.2-1DEBIAN-CVE-2021-4181
Ubuntu:22.04:LTSwireshark3.6.2-2UBUNTU-CVE-2021-4181
Ubuntu:24.04:LTSwireshark4.2.2-1.1build3UBUNTU-CVE-2021-4181

Affected products (as reported)

VendorProductVersions
Wireshark Foundation Wireshark =3.6.0>=3.4.0, <3.4.10

References