Dashboard / CVE-2026-39877

CVE-2026-39877

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-07-27 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

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

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. An app may be able to disclose kernel memory.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
apple macos 14.0 – 14.8.8

References & Advisories (8)

https://support.apple.com/en-us/128071
Release Notes Vendor Advisory
https://support.apple.com/en-us/128072
Release Notes Vendor Advisory

Bug Bounty Relevance

41 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.17%
Raw Score 0.001730
Percentile 6.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00173
2026-10-28
0.00173

Intelligence Sources

nvd ref →

External Links