CVE-2021-1820
6.5
MEDIUM
CVSS 3.1
EPSS 0.48%
Description
A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.
How to fix CVE-2021-1820
To remediate CVE-2021-1820, upgrade the affected package to a fixed version below.
- Debian/webkit2gtk—upgrade to 2.30.1-1 or later
- —upgrade to 2.30.0-1 or later
Is CVE-2021-1820 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.30.1-1
- from 0, < 2.30.0-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |