Vulnerability Details : CVE-2020-27930

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.
Published 2020-12-08 21:15:14
Updated 2025-03-13 19:59:40
Source Apple Inc.
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2020-27930

CVE-2020-27930 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Apple Multiple Products Memory Corruption Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Apple iOS, iPadOS, macOS, and watchOS FontParser contain a memory corruption vulnerability which may allow for code execution when processing maliciously crafted front.
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2020-27930
Added on 2021-11-03 Action due date 2022-05-03

Exploit prediction scoring system (EPSS) score for CVE-2020-27930

EPSS FAQ
42.97%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 97 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-27930

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.8
 MEDIUM AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
 NIST
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1.8
5.9
 134c704f-9b21-4f2e-91b3-4a467353bcc0 2025-01-29
7.8
 HIGH CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1.8
5.9
 NIST

CWE ids for CVE-2020-27930

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by:
    • 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2020-27930

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