CVE-2009-5018

Stack-based buffer overflow in gif2png.c in gif2png 2.5.3 and earlier might allow context...

6.8 MediumPublic exploit

Stack-based buffer overflow in gif2png.c in gif2png 2.5.3 and earlier might allow context-dependent attackers to execute arbitrary code via a long command-line argument, as demonstrated by a CGI program that launches gif2png.

Exploit likelihood

10.9%Down 13.2 points since Feb 4, 2022

What each source reports

NVD Score used 6.8

Record: CVE-2009-5018
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-119
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-5018
Updated: 2026-11-02

EUVDEUVD-2009-4976 No score

Record: EUVD-2009-4976
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4g27-cp2v-vp66 No score

Stack-based buffer overflow in gif2png.c in gif2png 2.5.3 and earlier might allow context...

Record: GHSA-4g27-cp2v-vp66
Weakness: CWE-119
Updated: 2026-11-02

Affected products

catb gif2png

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	gif2png 2.5.2 - Remote Buffer Overflow	2009-12-12

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-5018 is a medium vulnerability (CVSS 6.8) in Catb Gif2png, published January 14, 2011. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 10.9%, the 95th percentile. No source names a fixed version.

References

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