CVE-2021-30785

moderate-risk

Published 2021-09-08

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-004 Catalina. Processing a maliciously crafted image may lead to arbitrary code execution.

Do I need to act?

0.80% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.8/10 High

LOCAL / LOW complexity

Affected Products (14)

Iphone Os

Mac Os X

Macos

Tvos

Watchos

Affected Vendors

Apple

References (12)

Release Notes https://support.apple.com/en-us/HT212600

Release Notes https://support.apple.com/en-us/HT212601

Release Notes https://support.apple.com/en-us/HT212602

Release Notes https://support.apple.com/en-us/HT212604

Release Notes https://support.apple.com/en-us/HT212605

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-353/

Release Notes https://support.apple.com/en-us/HT212600

Release Notes https://support.apple.com/en-us/HT212601

Release Notes https://support.apple.com/en-us/HT212602

Release Notes https://support.apple.com/en-us/HT212604

Release Notes https://support.apple.com/en-us/HT212605

Third Party Advisory https://www.zerodayinitiative.com/advisories/ZDI-22-353/

/ 100

moderate-risk

Severity 24/34 · High

Exploitability 3/34 · Minimal

Exposure 18/34 · Moderate