VULNERABILITY INTELLIGENCE

CVE-2021-45909

CVSS score7.8 HIGH

EPSS probability0.90%

CISA KEVNot currently listed

Published2021-12-28

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

An issue was discovered in gif2apng 1.9. There is a heap-based buffer overflow vulnerability in the DecodeLZW function. It allows an attacker to write a large amount of arbitrary data outside the boundaries of a buffer.

Weakness classification

nvd@nist.gov: CWE-787

Primary references

cve@mitre.org — Exploit, Issue Tracking, Mailing List, Third Party Advisory
cve@mitre.org — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory