VDB-397786 · CVE-2026-52131 · Nessus 342475

ggml-org llama.cpp gguf_reader gguf_reader::read assertion

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability was found in ggml-org llama.cpp and classified as problematic. This issue affects the function gguf_reader::read of the component gguf_reader. Executing a manipulation can lead to assertion. This vulnerability is handled as CVE-2026-52131. The attack can be executed remotely. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability has been found in ggml-org llama.cpp (the affected version is unknown) and classified as problematic. This vulnerability affects the function gguf_reader::read of the component gguf_reader. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect availability. CVE summarizes:

llama.cpp b5693 and before has a Reachable Assertion via the gguf_reader::read function.

The advisory is available at github.com. This vulnerability was named CVE-2026-52131 since 06/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 342475 (Linux Distros Unpatched Vulnerability : CVE-2026-52131), which helps to determine the existence of the flaw in a target environment.

Applying the patch b5693 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Tenable (342475). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

ggml-org

Name

llama.cpp

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Assertion
CWE: CWE-617
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

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: 342475
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-52131

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: b5693

Timelineinfo

06/08/2026 CVE reserved
09/01/2026 +85 days Advisory disclosed
09/01/2026 +0 days VulDB entry created
09/06/2026 +5 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-52131 (🔒)
GCVE (CVE): GCVE-0-2026-52131
GCVE (VulDB): GCVE-100-397786

Entryinfo

Created: 09/01/2026 19:30
Updated: 09/06/2026 13:50
Changes: 09/01/2026 19:30 (55), 09/03/2026 12:28 (2), 09/06/2026 13:50 (11)
Complete: 🔍
Cache ID: 216::103

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