CVE-2020-21050

6.5 MEDIUM
Published: September 14, 2021 Modified: April 24, 2026
View on NVD

Description

Libsixel prior to v1.8.3 contains a stack buffer overflow in the function gif_process_raster at fromgif.c.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://bitbucket.org/netbsd/pkgsrc/commits/a27113e21179cbfbfae0c35f6a9edd6aa498faae
Source: cve@mitre.org
Broken Link
https://cwe.mitre.org/data/definitions/121.html
Source: cve@mitre.org
Technical Description
https://github.com/saitoha/libsixel/blob/master/ChangeLog
Source: cve@mitre.org
Release Notes Third Party Advisory
https://github.com/saitoha/libsixel/commit/7808a06b88c11dbc502318cdd51fa374f8cd47ee
Source: cve@mitre.org
Patch Third Party Advisory
https://github.com/saitoha/libsixel/issues/75
Source: cve@mitre.org
Exploit Issue Tracking Patch Third Party Advisory
https://github.com/saitoha/libsixel/releases/tag/v1.8.5
Source: cve@mitre.org
Release Notes Third Party Advisory
https://bitbucket.org/netbsd/pkgsrc/commits/a27113e21179cbfbfae0c35f6a9edd6aa498faae
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link
https://cwe.mitre.org/data/definitions/121.html
Source: af854a3a-2127-422b-91ae-364da2661108
Technical Description
https://github.com/saitoha/libsixel/blob/master/ChangeLog
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Third Party Advisory
https://github.com/saitoha/libsixel/commit/7808a06b88c11dbc502318cdd51fa374f8cd47ee
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory
https://github.com/saitoha/libsixel/issues/75
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Issue Tracking Patch Third Party Advisory
https://github.com/saitoha/libsixel/releases/tag/v1.8.5
Source: af854a3a-2127-422b-91ae-364da2661108
Release Notes Third Party Advisory

12 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
0.9%
76th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-787

Affected Vendors

saitoha

Related CVEs

CVE-2026-6175 N/A
CVE-2026-42171 7.8
CVE-2026-41488 3.1
CVE-2026-41481 6.5
CVE-2026-41478 9.9