Dashboard / CVE-2026-120438

CVE-2026-120438

HIGH
MEDIUM Priority: 0.01 BB Relevance: 42/100
Published: 2026-11-02 Modified: 2026-11-05 First seen: 2026-11-02 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

Description

QuickJS-NG before 0.16.0 contains an integer overflow in js_proxy_get_own_property_names() in quickjs.c that causes a heap buffer overflow on 32-bit hosts. Attackers running JavaScript can return a large array-like object from a Proxy ownKeys trap to wrap the allocation size, causing crashes or potential code execution.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
quickjs-ng QuickJS-NG 0 < 0.16.0
quickjs-ng QuickJS-NG 0 < 0.16.0

References & Advisories (5)

Bug Bounty Relevance

42 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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

EPSS — Exploitation Probability

0.14%
Raw Score 0.001400
Percentile 3.4%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00140
2026-11-12
0.00140
2026-11-10
0.00140
2026-11-09
0.00140
2026-11-08
0.00140
2026-11-07
0.00140
2026-11-06
0.00140
2026-11-05
0.00140
2026-11-04
0.00140
2026-11-03
0.00140

Intelligence Sources

mitre ref →
nvd ref →

External Links