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CVE-2021-30860

Published: Aug 24, 2021Updated: Oct 27, 2025 Sources: CVE List NVD BDUCWE-190
NVD MITRE
7.8CVSSHIGH
EPSS Score
76.0%
Top 0.5%
CISA KEV
Active Exploitation
Since Nov 3, 2021
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-190

Affected Products

iPadOSApple Inc.
OS
Operating Systems / mobile-os
MacOSApple Inc.
On-premOS
Operating Systems / unix-bsd
OS XApple Inc.
On-premOS
Operating Systems / mobile-os
watchOSApple Inc.
OS
Operating Systems / mobile-os
iOSApple Inc.
EmbeddedOS
Operating Systems / mobile-os
apple inc.commercialUSMobile Appsaka apple
and 11 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Nov 3, 2021
Remediation due:Nov 17, 2021

Required action: Apply updates per vendor instructions.

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://support.apple.com/en-us/HT212806
support.apple.com
https://support.apple.com/en-us/HT212807
support.apple.com
https://support.apple.com/en-us/HT212804
support.apple.com
and 15 more references View all →

Timeline

Published
Aug 24, 2021
Added to CISA KEV
Nov 3, 2021
Last Updated
Oct 27, 2025

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