CVE-2021-33796: In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.

PriorityP336high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

0.71%

49.5th percentile

In MuJS before version 1.1.2, a use-after-free flaw in the regexp source property access may cause denial of service.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
artifex	mujs	< 1.1.2	1.1.2
artifex	mujs	>= 0 < 1.1.3-2	1.1.3-2
artifex	mujs	>= 0 < 1.1.3-2	1.1.3-2
artifex	mujs	>= 0 < 1.1.3-2	1.1.3-2
debian	mujs	< mujs 1.1.3-2 (bookworm)	mujs 1.1.3-2 (bookworm)
mujs	mujs	1.1.1 – all	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv7.5HIGH

vendor_debian10.0CRITICAL

Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.