# CVE-2021-30860

> 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.

- **CVSS:** 7.8 (HIGH)
- **EPSS:** 76.0%
- **CISA KEV:** yes
- **CWE:** CWE-190

Canonical: https://intel.threadlinqs.com/cve/CVE-2021-30860
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp