CVE-2020-27933

HIGH

iCloud < 7.20 - Out-of-bounds Write via Maliciously Crafted Image

Title source: llm

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, iCloud for Windows 7.20, watchOS 6.2.8, tvOS 13.4.8, macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra. Processing a maliciously crafted image may lead to arbitrary code execution.

References (5)

Core 5

Core References

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT211289

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT211288

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT211290

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT211291

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT211295

Scores

CVSS v3 7.8

EPSS 0.0099

EPSS Percentile 58.5%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE

CWE-787

Status published

Products (7)

apple/icloud < 7.20

apple/ipados < 13.6

apple/iphone_os < 13.6

apple/mac_os_x 10.15.6 (2 CPE variants)

apple/mac_os_x 10.15 - 10.15.6

apple/tvos < 13.4.8

apple/watchos < 6.2.8

Published Apr 02, 2021

Tracked Since Feb 18, 2026