What is CVE-2025-69653?

CVE-2025-69653 is a medium-severity vulnerability in Quickjs_project Quickjs, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-03-06.

How severe is CVE-2025-69653?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Quickjs_project Quickjs

CVE-2025-69653

A crafted JavaScript input can trigger an internal assertion failure in QuickJS release 2025-09-13, fixed in commit 1dbba8a88eaa40d15a8a9b70bb1a0b8fb5b552e6 (2025-12-11), in file gc_decref_child in quickjs.c, when executed with the qjs int…

EPSS: 0.002 (11.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Quickjs_project Quickjs
N/a — versions n/a

Weakness classification (CWE)

CWE-617 — Reachable Assertion

References

cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2025-69653?: CVE-2025-69653 is a medium-severity vulnerability in Quickjs_project Quickjs, classified under Reachable Assertion. CVSS score: 6.5/10. Published 2026-03-06.
How severe is CVE-2025-69653?: Medium severity. CVSS v3 base score is 6.5 out of 10.