CVE-2023-4050

HIGH
MEDIUM Priority: 0.94 BB Relevance: 78/100
Published: 2023-08-01 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
debian debian_linux 11.0
debian debian_linux 12.0
mozilla firefox < 116.0

Bug Bounty Relevance

78 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

12.58%
Raw Score 0.125840
Percentile 96.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.12584
2026-10-28
0.12584

Intelligence Sources

nvd ref →