CVE-2025-12745: Bellard Quickjs

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

A weakness has been identified in QuickJS up to eb2c89087def1829ed99630cb14b549d7a98408c. This affects the function js_array_buffer_slice 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 products

• Bellard Quickjs: before 2025-11-03 (fixed in 2025-11-03)

Published 2025-11-05. Last modified 2026-06-17.