Dashboard / CVE-2026-117887

CVE-2026-117887

HIGH
MEDIUM Priority: 0.02 BB Relevance: 68/100
Published: 2026-10-27 Modified: 2026-11-04 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

Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 159, Firefox ESR 115.44, Firefox ESR 153.6, Thunderbird 159, and Thunderbird 153.6.

Weakness Classification (1)

References & Advisories (6)

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

0.19%
Raw Score 0.001870
Percentile 8.4%
Date 2026-11-04

EPSS Trend

2026-11-04
0.00187
2026-11-03
0.00187
2026-11-02
0.00187
2026-11-01
0.00187
2026-10-31
0.00187
2026-10-30
0.00187
2026-10-29
0.00187
2026-10-28
0.00187

Intelligence Sources

mitre ref →
nvd ref →

External Links