CVE-2009-3291

NONECVSS 0.0Trending — 4 sources updated this week

0.0

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates.

CVSS v3: —
EG Score: 0.0(none)
EPSS: 83.4%
KEV: Not listed

Published

September 22, 2009

Last Modified

April 23, 2026

References (34)

cve@mitrehttp://lists.apple.com/archives/security-announce/2009/Nov/msg00000.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html
cve@mitrehttp://marc.info/?l=bugtraq&m=127680701405735&w=2
cve@mitrehttp://marc.info/?l=bugtraq&m=130497311408250&w=2
cve@mitrehttp://secunia.com/advisories/36791
cve@mitrehttp://secunia.com/advisories/37482
cve@mitrehttp://secunia.com/advisories/40262
cve@mitrehttp://support.apple.com/kb/HT3937
cve@mitrehttp://www.debian.org/security/2009/dsa-1940
cve@mitrehttp://www.osvdb.org/58185
cve@mitrehttp://www.php.net/ChangeLog-5.php#5.2.11
cve@mitrehttp://www.php.net/releases/5_2_11.php
cve@mitrehttp://www.securitytracker.com/id?1022914
cve@mitrehttp://www.vupen.com/english/advisories/2009/3184
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/53334

Patch Availability(2)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	php5-cli (5.1.2-1ubuntu3.17) @ dapper	2026-05-30	ubuntu
redhat	php-0:5.1.6-24.el5_4.5	2010-01-13	redhat

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.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-20Improper Input Validation

All Vendor Advisories

(2)

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.

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:09 UTCepss_batch
2026-06-04 13:09 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-30 15:10 UTCEG score recompute
2026-05-30 15:10 UTCVendor advisory
2026-05-30 15:10 UTCGHSA enrichment
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch

Frequently asked(4)

What is CVE-2009-3291?

CVE-2009-3291 is a none vulnerability published on September 22, 2009. The phpopensslapplyverificationpolicy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates.

When was CVE-2009-3291 disclosed?

CVE-2009-3291 was first published in the National Vulnerability Database on September 22, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2009-3291 actively exploited?

CVE-2009-3291 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2009-3291?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3291, 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-2009-3291

Explore →

Is Your Infrastructure Affected by CVE-2009-3291?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2009-3291

Published

Last Modified

References (34)

Patch Availability(2)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-3291?

Same vendor

Same CWE

CVE-2009-3291

📅 Published

🔄 Last Modified

🔗 References (34)

Patch Availability(2)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(4)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-3291?

🔗 Related CVEs(same vendor + same CWE)

Same vendor

Same CWE

Published

Last Modified

References (34)

Frequently asked(4)

Related CVEs(same vendor + same CWE)