CVE-2026-86981

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-10-20 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

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

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to cause unexpected system termination.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
apple macos 15.0 – 15.8

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.13%
Raw Score 0.001340
Percentile 2.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00134
2026-10-28
0.00134

Intelligence Sources

mitre ref →
nvd ref →