🛡️ CVE-2021-40633 on BellSoft — giflib

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Distribution advisory

This page covers CVE-2021-40633 as tracked by BellSoft, for the package giflib. The fix is available in version 5.2.2-r0; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. A user must be tricked into taking some action. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

BELL-CVE-2021-40633 is recorded against 1 package.

  • giflib (from 5.2.1-r5 up to 5.2.2-r0)

Timeline and source

Published on 21 March 2024 and last revised on 26 January 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

docs.bell-sw.com (Advisory)

CVE-2021-40633 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-03-21
Updated 2026-08-20
Modified 2026-01-26
Fix URL N/A

Affected Packages

Software From version Fixed in
giflib 5.2.1-r5 5.2.2-r0

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