CVE-2025-46712
May 08, 2025
Erlang/OTP is a set of libraries for the Erlang programming language. In versions prior to OTP-27.3.4 (for OTP-27), OTP-26.2.5.12 (for OTP-26), and OTP-25.3.2.21 (for OTP-25), Erlang/OTP SSH fails to enforce strict KEX handshake hardening measures by allowing optional messages to be exchanged. This allows a Man-in-the-Middle attacker to inject these messages in a connection during the handshake. This issue has been patched in versions OTP-27.3.4 (for OTP-27), OTP-26.2.5.12 (for OTP-26), and OTP-25.3.2.21 (for OTP-25).
Affected Packages
https://github.com/erlang/otp.git (GITHUB):
Affected version(s) >=OTP-27.0 <OTP-27.3.4Fix Suggestion:
Update to version OTP-27.3.4https://github.com/erlang/otp.git (GITHUB):
Affected version(s) >=OTP-26.2 <OTP-26.2.5.12Fix Suggestion:
Update to version OTP-26.2.5.12https://github.com/erlang/otp.git (GITHUB):
Affected version(s) >=OTP-17.0 <OTP-25.3.2.21Fix Suggestion:
Update to version OTP-25.3.2.21Related Resources (6)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Expected Behavior Violation
EPSS
Base Score:
0.34
