CVE-2020-25721
8.8
HIGH
CVSS 3.1
EPSS 0.37%
Description
Kerberos acceptors need easy access to stable AD identifiers (eg objectSid). Samba as an AD DC now provides a way for Linux applications to obtain a reliable SID (and samAccountName) in issued tickets.
How to fix CVE-2020-25721
To remediate CVE-2020-25721, upgrade the affected package to a fixed version below.
- Alpine/samba—upgrade to 4.13.17-r0 or later
- Debian/samba—upgrade to 2:4.13.13+dfsg-1~deb11u2 or later
Is CVE-2020-25721 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 4.13.17-r0
- from 0, < 2:4.13.13+dfsg-1~deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |