CVE-2026-20639

high

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.

References

https://support.apple.com/en-us/126796

https://support.apple.com/en-us/126795

https://support.apple.com/en-us/126348

Details

Source: Mitre, NVD

Published: 2026-03-25

Updated: 2026-03-25

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

Detections

Analytics