CVE-2026-3979

LOW EPSS 1.7%
Published Mar 12, 20263mo ago · Modified Apr 29, 20262mo ago
1.9 CVSS 4.0
Low
Find Similar
Published Mar 12, 2026 3mo ago
Last Modified Apr 29, 2026 2mo ago

Description

A flaw has been found in quickjs-ng quickjs up to 0.12.1. This affects the function js_iterator_concat_return of the file quickjs.c. This manipulation causes use after free. The attack requires local access. The exploit has been published and may be used. Patch name: daab4ad4bae4ef071ed0294618d6244e92def4cd. Applying a patch is the recommended action to fix this issue.

CVSS Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
1.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-416 Use After Free Memory Safety

References 8

  • github.com https://github.com/quickjs-ng/quickjs/
  • github.com https://github.com/quickjs-ng/quickjs/commit/daab4ad4bae4ef071ed0294618d6244e92def4cd
  • github.com https://github.com/quickjs-ng/quickjs/issues/1368
  • github.com https://github.com/quickjs-ng/quickjs/issues/1368#issue-4004680962
  • github.com https://github.com/quickjs-ng/quickjs/pull/1370
  • vuldb.com https://vuldb.com/?ctiid.350414
  • vuldb.com https://vuldb.com/?id.350414
  • vuldb.com https://vuldb.com/?submit.769600

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.