CVE-2021-30860An integer overflow was addressed with improved input validation.
Updated under an hour ago ()
Does this affect you?
It affects Apple macOS and 7 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Nov 3, 2021; federal agencies had to remediate by Nov 17, 2021. Treat that date as your deadline.
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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 (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-190
- Known exploited
- Added to CISA KEV Nov 3, 2021; federal remediation due Nov 17, 2021Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 75.99% (percentile 100)
- Assigned by
- apple
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Apple macOS apple:macos (from the name) | from unspecified before 11.6 | CNA record |
Apple watchOS apple:watchos (from the name) | from unspecified before 7.6 | CNA record |
Apple iOS apple:ios (from the name) | from unspecified before 14.8 | CNA record |
apple ipados apple:ipados | before 14.8 | NVD |
apple iphone_os apple:iphone_os | before 12.5.5; from 13.0 before 14.8 | NVD |
apple mac_os_x apple:mac_os_x | from 10.15 before 10.15.7; 10.15.7; 10.15.7; 10.15.7; 10.15.7; 10.15.7; 10.15.7; 10.15.7 | NVD |
apple macos apple:macos | before 11.6 | NVD |
apple watchos apple:watchos | before 7.6.2 | NVD |
xpdfreader xpdf xpdfreader:xpdf | before 4.04 | NVD |
freedesktop poppler freedesktop:poppler | before 22.09.0 | NVD |
References
- https://support.apple.com/en-us/HT212804x-refsource-misc, vendor-advisory
- https://support.apple.com/en-us/HT212805x-refsource-misc, vendor-advisory
- https://support.apple.com/en-us/HT212807x-refsource-misc, vendor-advisory
- https://support.apple.com/en-us/HT212806x-refsource-misc, vendor-advisory
- http://seclists.org/fulldisclosure/2021/Sep/28mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/Sep/27mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/Sep/25mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/Sep/26mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/Sep/40mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/Sep/38mailing-list, x-refsource-fulldisc, third-party-advisory
- http://seclists.org/fulldisclosure/2021/Sep/39mailing-list, x-refsource-fulldisc, third-party-advisory
- https://support.apple.com/kb/HT212824x-refsource-confirm, vendor-advisory
- http://seclists.org/fulldisclosure/2021/Sep/50mailing-list, x-refsource-fulldisc, third-party-advisory
- http://www.openwall.com/lists/oss-security/2022/09/02/11mailing-list, x-refsource-mlist
- https://security.gentoo.org/glsa/202209-21vendor-advisory, x-refsource-gentoo, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30860us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.