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Vulnerability · Published Feb 17, 2021 · Assigned by GitLab

CVE-2021-22173

Low 3.7

In plain English

A low-severity security flaw in Wireshark from The Wireshark Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.4% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)3.7Low
Exploit odds (30 days)2.4%top 15.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

Memory leak in USB HID dissector in Wireshark 3.4.0 to 3.4.2 allows denial of service via packet injection or crafted capture file

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20wireshark3.4.3-r0ALPINE-CVE-2021-22173
Alpine:v3.21wireshark3.4.3-r0ALPINE-CVE-2021-22173
Alpine:v3.22wireshark3.4.3-r0ALPINE-CVE-2021-22173
Alpine:v3.23wireshark3.4.3-r0ALPINE-CVE-2021-22173
Alpine:v3.24wireshark3.4.3-r0ALPINE-CVE-2021-22173
Debian:12wireshark3.4.3-1DEBIAN-CVE-2021-22173
Debian:13wireshark3.4.3-1DEBIAN-CVE-2021-22173
Debian:14wireshark3.4.3-1DEBIAN-CVE-2021-22173
Ubuntu:24.04:LTSwiresharkno fix listedUBUNTU-CVE-2021-22173
Ubuntu:25.10wiresharkno fix listedUBUNTU-CVE-2021-22173
Ubuntu:26.04:LTSwiresharkno fix listedUBUNTU-CVE-2021-22173
Ubuntu:26.10wiresharkno fix listedUBUNTU-CVE-2021-22173

Affected products (as reported)

VendorProductVersions
The Wireshark Foundation Wireshark >=3.4.0, <3.4.3

References