Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2021-27135 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://access.redhat.com/security/cve/CVE-2021-27135 CVEThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1927559 CVEIssue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1182091 CVEIssue Tracking
http://seclists.org/fulldisclosure/2021/May/52 CVEMailing ListThird Party Advisory
https://github.com/ThomasDickey/xterm-snapshots/commit/82ba55b8f994ab30ff561a347b82ea340ba7075c CVEPatchThird Party Advisory

see all 26 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
invisible-island xterm
< 366

CPE

  • cpe:2.3:a:invisible-island:xterm:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
9.0

CPE

  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
33

CPE

  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

15 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-27135
NVD Published Date:
Feb 10, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]