CVE-2025-12745: QuickJS quickjs.c js_array_buffer_slice buffer over-read

Published Nov 5, 2025
·
Updated

A weakness has been identified in QuickJS up to eb2c89087def1829ed99630cb14b549d7a98408c. This affects the function jsarraybufferslice of the file quickjs.c. This manipulation causes buffer over-read. The attack is restricted to local execution. The exploit has been made available to the public and could be exploited. This product adopts a rolling release strategy to maintain continuous delivery Patch name: c6fe5a98fd3ef3b7064e6e0145dfebfe12449fea. To fix this issue, it is recommended to deploy a patch.

Affected Software

2 affected components
QuickJS QuickJS<=eb2c89087def1829ed99630cb14b549d7a98408c
Bellard Quickjs<2025-11-03

Event History

Nov 5, 2025
CVE Published
via MITRE·06:32 PM
Data Sourced
via MITRE·06:32 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·07:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-12745?

CVE-2025-12745 has been assessed as a moderate severity vulnerability.

2

How do I fix CVE-2025-12745?

To remediate CVE-2025-12745, ensure you update QuickJS to a version beyond eb2c89087def1829ed99630cb14b549d7a98408c.

3

What kind of attack is possible with CVE-2025-12745?

CVE-2025-12745 allows for local execution attacks due to buffer over-read vulnerabilities.

4

Which versions of QuickJS are affected by CVE-2025-12745?

CVE-2025-12745 affects all versions of QuickJS up to and including eb2c89087def1829ed99630cb14b549d7a98408c.

5

What component of QuickJS is vulnerable in CVE-2025-12745?

The vulnerability in CVE-2025-12745 specifically affects the js_array_buffer_slice function in quickjs.c.

Contact

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