CVE-2026-20639

HIGH

7.5

Description

An integer overflow was addressed with improved input validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3. Processing a maliciously crafted string may lead to heap corruption.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/25/2026

Last Modified3/25/2026

Sourcenvd

Honeypot Sightings0

Affected Products

apple:macos

Weaknesses (CWE)

CWE-190

References

https://support.apple.com/en-us/126348(product-security@apple.com)

https://support.apple.com/en-us/126795(product-security@apple.com)

https://support.apple.com/en-us/126796(product-security@apple.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.