QuickJS up to eb2c89087def1829ed99630cb14b549d7a98408c quickjs.c js_array_buffer_slice buffer over-read

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in QuickJS up to eb2c89087def1829ed99630cb14b549d7a98408c. This vulnerability affects the function js_array_buffer_slice of the file quickjs.c. Such manipulation leads to buffer over-read. This vulnerability is listed as CVE-2025-12745. The attack must be carried out locally. In addition, an exploit is available. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in QuickJS up to eb2c89087def1829ed99630cb14b549d7a98408c and classified as critical. Affected by this issue is the function js_array_buffer_slice of the file quickjs.c. The manipulation with an unknown input leads to a buffer over-read vulnerability. Using CWE to declare the problem leads to CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. Impacted is confidentiality, integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-12745. The exploitation is known to be easy. The attack needs to be approached locally. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 274367 (Linux Distros Unpatched Vulnerability : CVE-2025-12745), which helps to determine the existence of the flaw in a target environment.

Applying the patch c6fe5a98fd3ef3b7064e6e0145dfebfe12449fea is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (274367). Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Buffer over-read
CWE: CWE-126 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 274367
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-12745

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: c6fe5a98fd3ef3b7064e6e0145dfebfe12449fea

Timelineinfo

11/05/2025 Advisory disclosed
11/05/2025 +0 days VulDB entry created
01/09/2026 +65 days VulDB entry last update

Sourcesinfo

Advisory: 451
Status: Confirmed
Confirmation: 🔒

CVE: CVE-2025-12745 (🔒)
GCVE (CVE): GCVE-0-2025-12745
GCVE (VulDB): GCVE-100-331268
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/05/2025 14:59
Updated: 01/09/2026 09:18
Changes: 11/05/2025 14:59 (60), 11/05/2025 17:40 (1), 11/05/2025 17:42 (1), 11/05/2025 17:43 (1), 11/07/2025 16:03 (2), 11/08/2025 15:34 (30), 01/09/2026 09:18 (11)
Complete: 🔍
Submitter: im-razvan
Committer: im-razvan
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #678850: Fabrice Bellard QuickJS Latest commit eb2c890 (and earlier versions) Memory Corruption (by im-razvan)

Once again VulDB remains the best source for vulnerability data.

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