CVE-2016-3171

HIGHNVD 8.18.1—

8.1

Drupal 6.x before 6.38, when used with PHP before 5.4.45, 5.5.x before 5.5.29, or 5.6.x before 5.6.13, might allow remote attackers to execute arbitrary code via vectors related to session data truncation.

CVSS v3: 8.1
EG Score: 8.1(medium)
EPSS: 92.3%
KEV: Not listed

Published

April 12, 2016

Last Modified

May 6, 2026

References (8)

cve@mitrehttp://www.debian.org/security/2016/dsa-3498
cve@mitrehttp://www.openwall.com/lists/oss-security/2016/02/24/19
cve@mitrehttp://www.openwall.com/lists/oss-security/2016/03/15/10
cve@mitrehttps://www.drupal.org/SA-CORE-2016-001
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3498
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/02/24/19
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/03/15/10
af854a3a-2127-422b-91ae-364da2661108https://www.drupal.org/SA-CORE-2016-001

Affected Packages

(2 across 1 ecosystem)

Packagist(2)

Package	Vulnerable range	Fixed in	Dependents
drupal/core	—	6.38	—
drupal/drupal	—	6.38	—

Data Freshness Timeline

(refreshed 9× 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.

2026-06-02 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 00:14 UTCepss_batch
2026-05-29 13:41 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 13:42 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:43 UTCepss_batch
2026-05-23 00:10 UTCEG score recompute
2026-05-22 21:15 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-22 20:53 UTCEG score recompute
2026-05-21 22:40 UTCepss_batch
2026-05-20 22:37 UTCepss_batch

Frequently asked(5)

What is CVE-2016-3171?

CVE-2016-3171 is a high vulnerability published on April 12, 2016. Drupal 6.x before 6.38, when used with PHP before 5.4.45, 5.5.x before 5.5.29, or 5.6.x before 5.6.13, might allow remote attackers to execute arbitrary code via vectors related to session data truncation.

When was CVE-2016-3171 disclosed?

CVE-2016-3171 was first published in the National Vulnerability Database on April 12, 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-2016-3171 actively exploited?

CVE-2016-3171 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-3171?

CVE-2016-3171 has a CVSS v3 base score of 8.1 (NVD).

How do I remediate CVE-2016-3171?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-3171, 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-2016-3171

Explore →

Is Your Infrastructure Affected by CVE-2016-3171?

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

Start Free Scan →Browse All CVEs

CVE-2016-3171

📅 Published

🔄 Last Modified

🔗 References (8)