CVE-2021-23192

7.5 highEPSS 2.0%

High (7.5) in samba samba. EPSS 2.0% chance of exploitation in the next 30 days.

A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 2.0% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
CWE: CWE-20
Published: 2022-03-02
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

samba:samba

References

https://bugzilla.redhat.com/show_bug.cgi?id=2019666
https://security.gentoo.org/glsa/202309-06
https://ubuntu.com/security/CVE-2021-23192
https://www.samba.org/samba/security/CVE-2021-23192.html
https://bugzilla.redhat.com/show_bug.cgi?id=2019666

Check your stack JSON