CVE-2021-1864

moderate-risk

Published 2021-09-08

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. An attacker with JavaScript execution may be able to execute arbitrary code.

Do I need to act?

1.7% chance of exploitation in next 30 days

EPSS score — moderate 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 9.8/10 Critical

NETWORK / LOW complexity

Affected Products (4)

Ipados

Iphone Os

Tvos

Watchos

Affected Vendors

Apple

References (6)

Vendor Advisory https://support.apple.com/en-us/HT212317

Vendor Advisory https://support.apple.com/en-us/HT212323

Vendor Advisory https://support.apple.com/en-us/HT212324

Vendor Advisory https://support.apple.com/en-us/HT212317

Vendor Advisory https://support.apple.com/en-us/HT212323

Vendor Advisory https://support.apple.com/en-us/HT212324

/ 100

moderate-risk

Severity 32/34 · Critical

Exploitability 4/34 · Minimal

Exposure 10/34 · Low