Servers and applications
CVE-2016-2118
The MS-SAMR and MS-LSAD protocol implementations in Samba 3.x and 4.x before 4.2.11, 4.3.x before 4.3.8, and 4.4.x before 4.4.2 mishandle DCERPC connections, which allows man-in-the-middle attackers to perform protocol-downgrade attacks and impersonate users by modifying the client-server data stream, aka "BADLOCK."
- Severity
- High 7.5
- Published
- 12 Apr 2016
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Fixed in
- 4.2.10, 4.3.7, 4.4.1
- Exploit chance
- 37% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 11 Nov 2026
- Weakness
- CWE-254
- Attack
- Over the network · Only under certain conditions · No login needed · Needs someone to click or open something
- Attacker can
- Read data · Change data · Take it down
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
SambaServers and applications · cpe:a:samba:samba |
|