Dashboard / CVE-2026-86991

CVE-2026-86991

HIGH
MEDIUM Priority: 0.06 BB Relevance: 75/100
Published: 2026-10-26 Modified: 2026-11-04 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted file may lead to unexpected process termination.

Weakness Classification (1)

Affected Software (10)

VendorProductVersion
Apple iOS and iPadOS 0 < 26.7.2
Apple iOS and iPadOS 0 < 27.2
Apple macOS 0 < 15.8.2
Apple macOS 0 < 26.7.2
Apple macOS 0 < 27.2
Apple visionOS 0 < 27.2
apple ipados < 26.7.2
apple iphone_os < 26.7.2
apple macos 15.0 – 15.8.2
apple visionos < 27.2

References & Advisories (6)

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:N/I:N/A:H

EPSS — Exploitation Probability

0.78%
Raw Score 0.007750
Percentile 56.0%
Date 2026-11-07

EPSS Trend

2026-11-07
0.00775
2026-11-06
0.00775
2026-11-05
0.00775
2026-11-04
0.00775
2026-11-03
0.00262
2026-11-02
0.00262
2026-11-01
0.00262
2026-10-31
0.00262
2026-10-30
0.00262
2026-10-29
0.00262
2026-10-28
0.00262

Intelligence Sources

mitre ref →
nvd ref →

External Links