VDB-350178 · CVE-2026-23868 · Nessus 301790

giflib up to 6.1.1 GifMakeSavedImage double free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.7	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in giflib up to 6.1.1. This issue affects the function GifMakeSavedImage. The manipulation results in double free. This vulnerability was named CVE-2026-23868. There is no available exploit. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in giflib up to 6.1.1. It has been classified as problematic. Affected is the function GifMakeSavedImage. The manipulation with an unknown input leads to a double free vulnerability. CWE is classifying the issue as CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be possible.

The advisory is available at facebook.com. This vulnerability is traded as CVE-2026-23868 since 01/16/2026. The exploitability is told to be difficult. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 301790 (Linux Distros Unpatched Vulnerability : CVE-2026-23868), which helps to determine the existence of the flaw in a target environment.

Applying the patch f5b7267aed3665ef025c13823e454170d031c106 is able to eliminate this problem. The bugfix is ready for download at sourceforge.net.

The vulnerability is also documented in the databases at Tenable (301790) and CERT Bund (WID-SEC-2026-1169). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

Red Hat Enterprise Linux
Oracle Linux
SUSE openSUSE
RESF Rocky Linux

Productinfo

Name

giflib

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 5.1
ADP CISA Vector: 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Double free
CWE: CWE-415 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 301790
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-23868

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: f5b7267aed3665ef025c13823e454170d031c106

Timelineinfo

01/16/2026 CVE reserved
03/10/2026 +53 days Advisory disclosed
03/10/2026 +0 days VulDB entry created
04/23/2026 +44 days VulDB entry last update

Sourcesinfo

Advisory: facebook.com
Status: Confirmed

CVE: CVE-2026-23868 (🔒)
GCVE (CVE): GCVE-0-2026-23868
GCVE (VulDB): GCVE-100-350178
CERT Bund: WID-SEC-2026-1169 - Red Hat Enterprise Linux (giflib): Schwachstelle ermöglicht Codeausführung oder DoS

Entryinfo

Created: 03/10/2026 23:57
Updated: 04/23/2026 13:03
Changes: 03/10/2026 23:57 (54), 03/11/2026 15:49 (2), 03/16/2026 01:31 (12), 04/20/2026 14:48 (7), 04/21/2026 10:16 (1), 04/23/2026 13:03 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.