HIGH
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."
Published Oct 1, 2012
7.5
HIGHCVSS 2.0
EPSS 5.24%
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."
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
5.24% 0.05236
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.05236
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.24% (0.05236) | 92.26th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.24% (0.05236) | 91.43th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.64% (0.03636) | 86.74th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.00% (0.05997) | 84.06th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.64% (0.03636) | 87.04th | v4 (v2025.03.14) |
| Dec 17, 2024 | 12.29% (0.12287) | 95.38th | v3 (v2023.03.01) |
| Dec 25, 2023 | 20.40% (0.20401) | 95.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 15.50% (0.15499) | 94.96th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.26% (0.08263) | 93.54th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.26% (0.08263) | 92.94th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.26% (0.08263) | 82.29th | v2 (v2022.01.01) |
Weaknesses (1)
References (8)
- http://optipng.hg.sourceforge.net/hgweb/optipng/optipng/rev/f1d5d44670a2 x_refsource_CONFIRMExploit
- http://optipng.sourceforge.net/ x_refsource_CONFIRMPatchVendor Advisory
- http://secunia.com/advisories/50654 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://sourceforge.net/news/?group_id=151404 x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2012/09/17/5 mailing-listx_refsource_MLISTExploitPatch
- http://www.openwall.com/lists/oss-security/2012/09/18/2 mailing-listx_refsource_MLISTExploitPatch
- http://www.securityfocus.com/bid/55566 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/78743 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://optipng.hg.sourceforge.net/hgweb/optipng/optipng/rev/f1d5d44670a2 | x_refsource_CONFIRMExploit | |
| http://optipng.sourceforge.net/ | x_refsource_CONFIRMPatchVendor Advisory | |
| http://secunia.com/advisories/50654 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://sourceforge.net/news/?group_id=151404 | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2012/09/17/5 | mailing-listx_refsource_MLISTExploitPatch | |
| http://www.openwall.com/lists/oss-security/2012/09/18/2 | mailing-listx_refsource_MLISTExploitPatch | |
| http://www.securityfocus.com/bid/55566 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/78743 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Oct 1, 2012
Updated Aug 6, 2024
Reserved Aug 21, 2012
Link CVE-2012-4432
CISA Vulnrichment
Updated n/a