vulnerability
Samba CVE-2023-3347: CVE-2022-2127, CVE-2023-3347, CVE-2023-34966, CVE-2023-34967 and CVE-2023-34968. Please see announcements for details.
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Jul 20, 2023 | Aug 8, 2023 | Jun 3, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Jul 20, 2023
Added
Aug 8, 2023
Modified
Jun 3, 2026
Description
A vulnerability was found in Samba's SMB2 packet signing mechanism. The SMB2 packet signing is not enforced if an admin configured "server signing = required" or for SMB2 connections to Domain Controllers where SMB2 packet signing is mandatory. This flaw allows an attacker to perform attacks, such as a man-in-the-middle attack, by intercepting the network traffic and modifying the SMB2 messages between client and server, affecting the integrity of the data.
Solutions
samba-upgrade-4_16_11samba-upgrade-4_17_10samba-upgrade-4_18_5
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.