CVE-2015-7801

HIGHNVD 8.88.8—

8.8

Use-after-free vulnerability in OptiPNG 0.6.4 allows remote attackers to execute arbitrary code via a crafted PNG file.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 85.3%
KEV: Not listed

Published

April 20, 2016

Last Modified

May 6, 2026

Advisory Details (2)

Auto-updated May 10, 2026

Patch available. Sources: redhat.

redhat Patch Available

1264015 – (CVE-2015-7801) CVE-2015-7801 optipng: Use-after-free vulnerability in 0.6.4

Affected: Red Hat Enterprise Linux 7.

https://bugzilla.redhat.com/show_bug.cgi?id=1264015

generic

oss-security - CVE Request: Use-after-free in optipng 0.6.4

http://www.openwall.com/lists/oss-security/2015/09/16/1

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	optipng (0.7.5-1ubuntu0.1) @ wily	2026-05-22	ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

UbuntuUSN-2951-1LOW
OptiPNG vulnerabilities

Data Freshness Timeline

(refreshed 9× in last 7d / 20× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

2026-06-08 14:14 UTCEPSS rescore
2026-06-07 15:22 UTCEPSS rescore
2026-06-06 20:59 UTCOSV refresh
2026-06-06 13:45 UTCEPSS rescore
2026-06-05 22:44 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-05 06:08 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-04 13:10 UTCEPSS rescore
2026-06-02 20:10 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-06-01 13:49 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 22:28 UTCEPSS rescore
2026-05-31 00:14 UTCEPSS rescore
2026-05-29 13:41 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-28 13:42 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore
2026-05-27 13:38 UTCEPSS rescore

Frequently asked(5)

What is CVE-2015-7801?

CVE-2015-7801 is a high vulnerability published on April 20, 2016. Use-after-free vulnerability in OptiPNG 0.6.4 allows remote attackers to execute arbitrary code via a crafted PNG file.

When was CVE-2015-7801 disclosed?

CVE-2015-7801 was first published in the National Vulnerability Database on April 20, 2016, with the most recent update on May 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2015-7801 actively exploited?

CVE-2015-7801 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2015-7801?

CVE-2015-7801 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2015-7801?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2015-7801, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2015-7801

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