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CVE-2012-4432
Use-after-free vulnerability in opngreduc.c in OptiPNG Hg and 0.7.x before 0.7.3 might allow remote attackers to execute arbitrary code…
High7.5EPSS 5.2%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Use-after-free vulnerability in opngreduc.c in OptiPNG Hg and 0.7.x before 0.7.3 might allow remote attackers to execute arbitrary code via unspecified vectors related to "palette reduction."
Timeline
ID reserved
By redhat
- 41 days later
· 41 days later
Published
- 12 years later
· 12 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 5.2% · top 7.4% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (8)
- 55566 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://optipng.sourceforge.net/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- optipng-palette-code-execution(78743) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- [oss-security] 20120917 CVE request: OptiPNG Palette Reduction Use-After-Free Vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://optipng.hg.sourceforge.net/hgweb/optipng/optipng/rev/f1d5d44670a2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 50654 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://sourceforge.net/news/?group_id=151404 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20120917 Re: CVE request: OptiPNG Palette Reduction Use-After-Free Vulnerability (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-4432)Record last updated .