CVE-2016-9189

MEDIUMNVD 5.55.5—

5.5

Pillow before 3.3.2 allows context-dependent attackers to obtain sensitive information by using the "crafted image file" approach, related to an "Integer Overflow" issue affecting the Image.core.map_buffer in map.c component.

CVSS v3: 5.5
EG Score: 5.5(medium)
EPSS: 58.1%
KEV: Not listed

Published

November 4, 2016

Last Modified

May 6, 2026

References (12)

cve@mitrehttp://pillow.readthedocs.io/en/3.4.x/releasenotes/3.3.2.html
cve@mitrehttp://www.debian.org/security/2016/dsa-3710
cve@mitrehttp://www.securityfocus.com/bid/94234
cve@mitrehttps://github.com/python-pillow/Pillow/issues/2105
cve@mitrehttps://github.com/python-pillow/Pillow/pull/2146/commits/c50ebe6459a131a1ea8ca531f10da616d3ceaa0f
cve@mitrehttps://security.gentoo.org/glsa/201612-52
af854a3a-2127-422b-91ae-364da2661108http://pillow.readthedocs.io/en/3.4.x/releasenotes/3.3.2.html
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2016/dsa-3710
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/94234
af854a3a-2127-422b-91ae-364da2661108https://github.com/python-pillow/Pillow/issues/2105
af854a3a-2127-422b-91ae-364da2661108https://github.com/python-pillow/Pillow/pull/2146/commits/c50ebe6459a131a1ea8ca531f10da616d3ceaa0f
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201612-52

Patch Availability(2)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	python-imaging (1.1.7-4ubuntu0.12.04.3) @ precise	2026-05-22	ubuntu
ubuntu	python3-pil (3.3.1-1ubuntu0.1) @ yakkety	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.

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
pillow	1.0 ... 3.3.1 (46 versions)	3.3.2	—

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 13× in last 7d / 18× 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.

2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:44 UTCepss_batch
2026-05-23 00:10 UTCEG score recompute
2026-05-22 21:15 UTCepss_batch
2026-05-22 18:03 UTCEG score recompute
2026-05-22 18:03 UTCVendor advisory
2026-05-20 22:37 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 22:37 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-20 11:21 UTCepss_batch
2026-05-18 21:30 UTCepss_batch
2026-05-18 21:30 UTCepss_batch
2026-05-18 21:30 UTCepss_batch

Frequently asked(5)

What is CVE-2016-9189?

CVE-2016-9189 is a medium vulnerability published on November 4, 2016. Pillow before 3.3.2 allows context-dependent attackers to obtain sensitive information by using the "crafted image file" approach, related to an "Integer Overflow" issue affecting the Image.core.map_buffer in map.c component.

When was CVE-2016-9189 disclosed?

CVE-2016-9189 was first published in the National Vulnerability Database on November 4, 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-2016-9189 actively exploited?

CVE-2016-9189 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 58.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-9189?

CVE-2016-9189 has a CVSS v3 base score of 5.5 (NVD).

How do I remediate CVE-2016-9189?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-9189, 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

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