CVE-2025-46712CWE-440

Erlang/OTP SSH Has Strict KEX Violations

Low · published May 8, 2025

CVSS v3.1
3.7
EPSS
1%
Percentile
44.8
In the wild
Unconfirmed
What it is

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).

The record
Technical detail
CVSS v3.1
3.7 · LOW
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00543 · 44.8th percentile
Weakness
CWE-440 · Expected Behavior Violation
Published
2025-05-08T19:26Z
EPSS history
Timeline
  • 08 MAY 19:26Z
    Erlang/OTP SSH Has Strict KEX Violations
    cvelistv5