How severe is CVE-2025-69653?

CVE-2025-69653 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-69653 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-69653?

CVE-2025-69653 affects Quickjs Project Quickjs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-69653?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-69653 have an EU (EUVD) identifier?

Yes. CVE-2025-69653 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208349.

When was CVE-2025-69653 published?

CVE-2025-69653 was published on 2026-03-06 and last updated on 2026-06-17.

CVE-2025-69653

CVE-2025-69653 is a medium-severity vulnerability in Quickjs Project Quickjs with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-617.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-208349
Weakness: CWE-617
Affected product: Quickjs Project Quickjs
Published: 2026-03-06
Last modified: 2026-06-17

Description

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 interpreter using the -m option. This leads to an abort (SIGABRT) during garbage collection and causes a denial-of-service.

Frequently asked questions

What is 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 interpreter using the -m option. This leads to an abort (SIGABRT) during garbage collection and causes a denial-of-service.
How severe is CVE-2025-69653?: CVE-2025-69653 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-69653 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-69653?: CVE-2025-69653 affects Quickjs Project Quickjs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-69653?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-69653 have an EU (EUVD) identifier?: Yes. CVE-2025-69653 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-208349.
When was CVE-2025-69653 published?: CVE-2025-69653 was published on 2026-03-06 and last updated on 2026-06-17.

References

https://github.com/bellard/quickjs/issues/467

Affected products (1)

cpe:2.3:a:quickjs_project:quickjs:*:*:*:*:*:*:*:*

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