Dashboard / CVE-2023-4049

CVE-2023-4049

MEDIUM
MEDIUM Priority: 0.04 BB Relevance: 62/100
Published: 2023-08-01 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

Race conditions in reference counting code were found through code inspection. These could have resulted in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Weakness Classification (1)

Affected Software (5)

VendorProductVersion
debian debian_linux 11.0
debian debian_linux 12.0
mozilla firefox < 116.0
mozilla firefox 102.0 – 102.14
mozilla firefox 115.0 – 115.1

References & Advisories (8)

https://bugzilla.mozilla.org/show_bug.cgi?id=1842658
Issue Tracking Permissions Required

Bug Bounty Relevance

62 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

5.9 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.63%
Raw Score 0.006340
Percentile 50.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00634
2026-10-28
0.00634

Intelligence Sources

nvd ref →

External Links