CVE-2020-27930
Apple Multiple Products Memory Corruption Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 12.4.9, watchOS 6.2.9, Security Update 2020-006 High Sierra, Security Update 2020-006 Mojave, iOS 14.2 and iPadOS 14.2, watchOS 5.3.9, macOS Catalina 10.15.7 Supplemental Update, macOS Catalina 10.15.7 Update. Processing a maliciously crafted font may lead to arbitrary code execution.
- 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
- 22.01% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 3 November 2021 · due 3 May 2022
- Weakness
- CWE-787
- Affected
- apple/ipados · apple/iphone os · apple/mac os x · apple/macos · apple/watchos
- Source
- product-security@apple.com
EPSS 22.0% since 26 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-2020-27930
References
- http://packetstormsecurity.com/files/161294/Apple-Safari-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT211928Vendor Advisory
- https://support.apple.com/en-us/HT211929Vendor Advisory
- https://support.apple.com/en-us/HT211931Vendor Advisory
- https://support.apple.com/en-us/HT211940Vendor Advisory
- https://support.apple.com/en-us/HT211944Vendor Advisory
- https://support.apple.com/en-us/HT211945Vendor Advisory
- https://support.apple.com/en-us/HT211946Vendor Advisory
- https://support.apple.com/en-us/HT211947Vendor Advisory
- http://packetstormsecurity.com/files/161294/Apple-Safari-Remote-Code-Execution.htmlThird Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2020/Dec/32Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT211928Vendor Advisory
- https://support.apple.com/en-us/HT211929Vendor Advisory
- https://support.apple.com/en-us/HT211931Vendor Advisory
- https://support.apple.com/en-us/HT211940Vendor Advisory
- https://support.apple.com/en-us/HT211944Vendor Advisory
- https://support.apple.com/en-us/HT211945Vendor Advisory
- https://support.apple.com/en-us/HT211946Vendor Advisory
- https://support.apple.com/en-us/HT211947Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-27930US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.