Vulnerability Report

CVE-2016-4009

Title: Python Pillow Memory Corruption

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2016-4009.

CWE Category CWE-119

Published Date Apr 13, 2016

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 9.8 CVSS v3.0

Exploit Probability (EPSS)

7.87%

Vulnerability Summary

CVE-2016-4009: Integer overflow in the ImagingResampleHorizontal function in libImaging/Resample.c in Pillow before 3.1.1 allows remote attackers to have unspecified impact via negative values of the new size, which triggers a heap-based buffer overflow.

Impacted Vendors

python 1

Reference Links

http://www.securityfocus.com/bid/86064 https://github.com/python-pillow/Pillow/blob/c3cb690fed5d4bf0c45576759de55d054916c165/CHANGES.rst https://github.com/python-pillow/Pillow/commit/4e0d9b0b9740d258ade40cce248c93777362ac1e https://github.com/python-pillow/Pillow/pull/1714 https://security.gentoo.org/glsa/201612-52 http://www.securityfocus.com/bid/86064 https://github.com/python-pillow/Pillow/blob/c3cb690fed5d4bf0c45576759de55d054916c165/CHANGES.rst https://github.com/python-pillow/Pillow/commit/4e0d9b0b9740d258ade40cce248c93777362ac1e https://github.com/python-pillow/Pillow/pull/1714 https://security.gentoo.org/glsa/201612-52

CVSS v3.0

Source Entity [email protected]

Severity CRITICAL

9.8

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity HIGH

10.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:L/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-4009 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 17, 2026 MODIFIED

Vulnerability data updated via NVD.

May 06, 2026 MODIFIED

Vulnerability data updated via NVD.

April 12, 2025 MODIFIED

Vulnerability data or affected products updated.

April 13, 2016 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.