CVE-2025-46712

Publication date 8 May 2025

Last updated 21 July 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

3.7 · Low

Score breakdown

Description

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).

Why is this CVE low priority?

Per upstream advisory, this is a low severity CVE

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
erlang 25.10 questing
Fixed 1:27.3.4.1+dfsg-1
25.04 plucky
Fixed 1:27.3+dfsg-1ubuntu1.2
24.10 oracular Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 1:25.3.2.8+dfsg-1ubuntu4.4
22.04 LTS jammy
Fixed 1:24.2.1+dfsg-1ubuntu0.5
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
Needs evaluation

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
erlang

Severity score breakdown

Parameter Value
Base score 3.7 · Low
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

References

Related Ubuntu Security Notices (USN)

Other references