CVE-2021-30860
Apple Multiple Products Integer Overflow Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 17 November 2021). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 75.99% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 3 November 2021 · due 17 November 2021
- Weakness
- CWE-190
- Affected
- apple/ipados · apple/iphone os · apple/mac os x · apple/macos · apple/watchos · xpdfreader/xpdf · freedesktop/poppler
- Source
- product-security@apple.com
EPSS 76.0% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2021-30860
References
- http://seclists.org/fulldisclosure/2021/Sep/25Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/26Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/27Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/28Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/38Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/39Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/40Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/50Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/09/02/11Mailing List
- https://security.gentoo.org/glsa/202209-21Third Party Advisory
- https://support.apple.com/en-us/HT212804Vendor Advisory
- https://support.apple.com/en-us/HT212805Vendor Advisory
- https://support.apple.com/en-us/HT212806Vendor Advisory
- https://support.apple.com/en-us/HT212807Vendor Advisory
- https://support.apple.com/kb/HT212824Vendor Advisory
- http://seclists.org/fulldisclosure/2021/Sep/25Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/26Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/27Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/28Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/38Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/39Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/40Mailing List, Third Party Advisory
- http://seclists.org/fulldisclosure/2021/Sep/50Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/09/02/11Mailing List
- https://security.gentoo.org/glsa/202209-21Third Party Advisory
- https://support.apple.com/en-us/HT212804Vendor Advisory
- https://support.apple.com/en-us/HT212805Vendor Advisory
- https://support.apple.com/en-us/HT212806Vendor Advisory
- https://support.apple.com/en-us/HT212807Vendor Advisory
- https://support.apple.com/kb/HT212824Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.