CVE-2021-33477
mrxvt - security update
8.8
HIGH
CVSS 3.1
EPSS 1.2%
Description
rxvt-unicode 9.22, rxvt 2.7.10, mrxvt 0.5.4, and Eterm 0.9.7 allow (potentially remote) code execution because of improper handling of certain escape sequences (ESC G Q). A response is terminated by a newline.
How to fix CVE-2021-33477
To remediate CVE-2021-33477, upgrade the affected package to a fixed version below.
- Alpine/mrxvt—upgrade to 0.5.4-r8 or later
- —upgrade to 9.22-r7 or later
- —upgrade to 0.9.6-5+deb9u1 or later
- —upgrade to 0.9.6-6.1 or later
- —upgrade to 0.5.4-2+deb9u1 or later
- —upgrade to 9.22-1+deb9u1 or later
- —upgrade to 9.22-11 or later
Is CVE-2021-33477 being exploited?
Low — EPSS is 1.2%, meaning exploitation activity has not been observed at scale.
Affected packages (7)
- from 0, < 0.5.4-r8
- from 0, < 9.22-r7
- from 0, < 0.9.6-5+deb9u1
- from 0, < 0.9.6-6.1
- from 0, < 0.5.4-2+deb9u1
- from 0, < 9.22-1+deb9u1
- from 0, < 9.22-11
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |