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CVE-2021-30860

HighPublished

Apple Multiple Products Integer Overflow Vulnerability

Published: Aug 24, 2021
Updated: Oct 21, 2025
Assigning CNA: apple
Evidence observed: Nov 3, 2021

Primary CVSS

7.8/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

76.0%

High · next 30 days

Percentile: 99.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

CISA Known Exploited

This CVE appears in the CISA Known Exploited Vulnerabilities catalog.

Summary

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.

Sources

CVE-2021-30860Detection
Scan for evidence of CVE-2021-30860 (FORCEDENTRY) exploit
CVE-2021-30860Research
Collection of materials relating to FORCEDENTRY

Responsible use

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