CVE-2021-30860

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-190

Affected software

No affected versions have been published.

Timeline

Published
Aug 24, 2021
Last modified
Jun 17, 2026
Added to CISA KEV
Nov 3, 2021
NVD status
Analyzed

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CVE-2021-30860: High severity, CVSS 7.8 | Vulnix