CVE-2021-30858
Apple iOS, iPadOS, macOS Use-After-Free Vulnerability
8.8
HIGH
CVSS 3.1
⚠ KEVEPSS 0.79%
Description
A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
How to fix CVE-2021-30858
To remediate CVE-2021-30858, upgrade the affected package to a fixed version below.
- —upgrade to 2.32.4-1~deb11u1 or later
- —upgrade to 2.32.4-1~deb11u1 or later
Is CVE-2021-30858 being exploited?
Yes — CVE-2021-30858 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (2)
- from 0, < 2.32.4-1~deb11u1
- from 0, < 2.32.4-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |