Use-after-free vulnerability in opngreduc.c in OptiPNG Hg and 0.7.x before 0.7.3 might…
Priority MEDIUM 41CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-399 and the CVSS impact.
Summary
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."
Why it matters now
EPSS 0.05236 92nd percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:optipng:optipng:0.7.0:*:*:*:*:*:*:* | 0.7.0 | Vulnerable | Optipng |
| cpe:2.3:a:optipng:optipng:0.7.1:*:*:*:*:*:*:* | 0.7.1 | Vulnerable | Optipng |
| cpe:2.3:a:optipng:optipng:0.7.2:*:*:*:*:*:*:* | 0.7.2 | Vulnerable | Optipng |
| cpe:2.3:a:optipng:optipng:hg:*:*:*:*:*:*:* | hg | Vulnerable | Optipng |
- cpe:2.3:a:optipng:optipng:0.7.0:*:*:*:*:*:*:* Versions 0.7.0 Vulnerable ·Optipng
- cpe:2.3:a:optipng:optipng:0.7.1:*:*:*:*:*:*:* Versions 0.7.1 Vulnerable ·Optipng
- cpe:2.3:a:optipng:optipng:0.7.2:*:*:*:*:*:*:* Versions 0.7.2 Vulnerable ·Optipng
- cpe:2.3:a:optipng:optipng:hg:*:*:*:*:*:*:* Versions hg Vulnerable ·Optipng
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2012-4432
- 2026-10-03 Alias added: GHSA-7wr9-wqrq-wjv4
References
Exploit 3
More Optipng vulnerabilities
- TI-2008-04852 Buffer overflow in the BMP reader in OptiPNG 0.6 and 0.6.1 allows user-assisted attackers… CVSS 2.0HIGH 9.3
- TI-2016-02000 The bmp_read_rows function in pngxtern/pngxrbmp.c in OptiPNG before 0.7.6 allows remote… CVSS 3.0MEDIUM 6.5
Sources
- CVE-2012-4432 · CVE Program
- CVE-2012-4432 · NVD
- FIRST EPSS
- GHSA-7wr9-wqrq-wjv4 · GitHub Advisory Database · CC BY 4.0
- CVE-2012-4432 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences