Dashboard / CVE-2026-5735

CVE-2026-5735

CRITICAL
INFO Priority: 0.03 BB Relevance: 80/100
Published: 2026-04-07 Modified: 2026-10-23 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Memory safety bugs present in Firefox 149.0.1 and Thunderbird 149.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149.0.2 and Thunderbird 149.0.2.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
mozilla firefox < 149.0.2
mozilla thunderbird < 149.0.2

References & Advisories (6)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.26%
Raw Score 0.002570
Percentile 17.3%
Date 2026-10-28

Intelligence Sources

nvd ref →

External Links