CVE-2021-27135
Critical
Published: 10 February 2021
Published
10 February 2021
Modified
21 November 2024
KEV Added
—
Patch
—
CVSS Score v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0072
73.0th percentile
Risk Priority
20
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-27135 is a critical-severity an unspecified weakness vulnerability in Invisible-Island Xterm. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 27.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-13902
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
invisible-island
xterm
≤ 366
debian
debian linux
9.0
fedoraproject
fedora
33
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.