Dashboard / CVE-2026-16371

CVE-2026-16371

HIGH
MEDIUM Priority: 0.04 BB Relevance: 68/100
Published: 2026-07-21 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, Thunderbird 140.13, Firefox ESR 140.15, and Thunderbird 140.15.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
mozilla firefox < 140.13.0
mozilla firefox < 153.0.0
mozilla thunderbird < 140.13.0
mozilla thunderbird 141.0 – 153.0

References & Advisories (7)

Bug Bounty Relevance

68 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

8.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.44%
Raw Score 0.004440
Percentile 38.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00444
2026-10-28
0.00444

Intelligence Sources

nvd ref →

External Links