Dashboard / CVE-2026-6766

CVE-2026-6766

HIGH
MEDIUM Priority: 0.02 BB Relevance: 75/100
Published: 2026-04-21 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
mozilla firefox < 140.10.0
mozilla firefox < 150.0
mozilla thunderbird < 140.10.0

References & Advisories (5)

Bug Bounty Relevance

75 / 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:H/I:N/A:N

EPSS — Exploitation Probability

0.26%
Raw Score 0.002570
Percentile 17.4%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00257
2026-10-28
0.00257

Intelligence Sources

nvd ref →

External Links