CVE-2021-1799
6.5
MEDIUM
CVSS 3.1
EPSS 0.13%
Description
A port redirection issue was addressed with additional port validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. A malicious website may be able to access restricted ports on arbitrary servers.
How to fix CVE-2021-1799
To remediate CVE-2021-1799, upgrade the affected package to a fixed version below.
- —upgrade to 2.30.6-1 or later
- —upgrade to 2.30.6-1 or later
Is CVE-2021-1799 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.30.6-1
- from 0, < 2.30.6-1
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:N/I:H/A:N |