CVE-2021-27135
xterm - security update
9.8
CRITICAL
CVSS 3.1
EPSS 0.72%
Description
xterm before Patch #366 allows remote attackers to execute arbitrary code or cause a denial of service (segmentation fault) via a crafted UTF-8 combining character sequence.
How to fix CVE-2021-27135
To remediate CVE-2021-27135, upgrade the affected package to a fixed version below.
- Debian/xterm—upgrade to 366-1 or later
- Debian/xterm—upgrade to 327-2+deb9u1 or later
Is CVE-2021-27135 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 366-1
- from 0, < 327-2+deb9u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |