CVE-2021-30860

high

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.

References

https://security.gentoo.org/glsa/202209-21

http://seclists.org/fulldisclosure/2021/Sep/50

http://seclists.org/fulldisclosure/2021/Sep/40

http://seclists.org/fulldisclosure/2021/Sep/39

http://seclists.org/fulldisclosure/2021/Sep/38

http://seclists.org/fulldisclosure/2021/Sep/28

http://seclists.org/fulldisclosure/2021/Sep/27

http://seclists.org/fulldisclosure/2021/Sep/26

http://seclists.org/fulldisclosure/2021/Sep/25

https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective

https://github.com/giriaryan694-a11y/exposed-apple-zero-days

https://github.com/thatformat/Hvv2023

https://github.com/GREENHAT7/Hvv2023

https://github.com/30440r/gex

https://github.com/Levilutz/CVE-2021-30860

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30860

https://support.apple.com/kb/HT212824

https://support.apple.com/en-us/HT212807

https://support.apple.com/en-us/HT212806

https://support.apple.com/en-us/HT212805

https://support.apple.com/en-us/HT212804

http://www.openwall.com/lists/oss-security/2022/09/02/11

Details

Source: Mitre, NVD

Published: 2021-08-24

Updated: 2026-06-17

Known Exploited Vulnerability (KEV)

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

Severity: High

EPSS

EPSS: 0.75994