Dashboard / CVE-2026-74988

CVE-2026-74988

CRITICAL
INFO Priority: 0.06 BB Relevance: 80/100
Published: 2026-08-18 Modified: 2026-10-28 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

Internally found bugs present in Firefox ESR 153.0 and Firefox 153. Some of these bugs showed evidence of memory corruption or another security-relevant defect and we presume that with enough effort some of these could have been exploited. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.

Weakness Classification (1)

Affected Software (8)

VendorProductVersion
mozilla firefox < 153.1.0
mozilla firefox < 153.1.0
mozilla firefox < 153.1.0
mozilla firefox < 153.1.0
mozilla thunderbird < 153.1.0
mozilla thunderbird < 153.1.0
mozilla thunderbird < 153.1.0
mozilla thunderbird < 153.1.0

References & Advisories (7)

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

0.61%
Raw Score 0.006090
Percentile 49.0%
Date 2026-10-28

Intelligence Sources

mitre ref →
nvd ref →

External Links