CVE-2021-39922
7.5
HIGH
CVSS 3.1
EPSS 4.6%
Description
Buffer overflow in the C12.22 dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
How to fix CVE-2021-39922
To remediate CVE-2021-39922, upgrade the affected package to a fixed version below.
- Debian/wireshark—upgrade to 3.4.10-0+deb11u1 or later
Is CVE-2021-39922 being exploited?
Low — EPSS is 4.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.4.10-0+deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |