CVE-2020-25721

medium
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
5.5

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.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-25721

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-25721.html

OS impact

OSVersionStatusFixed in
arch archfixed4.15.2-1
suse slesaffected
debian debianbookwormfixed2:4.13.14+dfsg-1
debian debianbullseyefixed2:4.13.13+dfsg-1~deb11u2
debian debianforkyfixed2:4.13.14+dfsg-1
debian debiansidfixed2:4.13.14+dfsg-1
debian debiantrixiefixed2:4.13.14+dfsg-1

References

Verify integrity in audit chain (admin only). AS-IS.