CVE-2025-46712— Erlang/OTP SSH Has Strict KEX Violations
Quick assessment
Affected
erlang otp
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Erlang/OTP是Erlang/OTP开源的一个JavaScript编写的处理处理异常的库。该库可以捕捉node.js内置API引发的异常。 Erlang/OTP存在安全漏洞，该漏洞源于SSH未严格实施KEX握手措施，可能导致中间人攻击。以下版本受到影响：OTP-27.3.4之前版本、OTP-26.2.5.12之前版本和OTP-25.3.2.21之前版本。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2025-46712
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Erlang/OTP SSH Has Strict KEX Violations
Source: CVE Program / CVE List V5
Vulnerability 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).
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
预期行为违背
Source: CVE Program / CVE List V5
Vulnerability Title
Erlang/OTP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Erlang/OTP是Erlang/OTP开源的一个JavaScript编写的处理处理异常的库。该库可以捕捉node.js内置API引发的异常。 Erlang/OTP存在安全漏洞，该漏洞源于SSH未严格实施KEX握手措施，可能导致中间人攻击。以下版本受到影响：OTP-27.3.4之前版本、OTP-26.2.5.12之前版本和OTP-25.3.2.21之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-46712
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-46712
请登录查看更多情报信息。
Patches & Fixes for CVE-2025-46712 (1)
Vendor Advisories for CVE-2025-46712 (1)
Vendor Pages for CVE-2025-46712 (1)
IV. Related Vulnerabilities
Same product: otp
-
CVE-2026-65634
Superlinear CPU denial of service in Erlang/OTP ASN.1 OBJECT -
CVE-2026-68956
SSH daemon allocates unbounded idle session channels, bypass -
CVE-2026-89422
TLS 1.3 client skips server authentication when ServerHello -
CVE-2026-69664
httpd parks a request worker indefinitely on a malformed chu -
CVE-2026-70409
eldap does not bound the port component of a referral URL be
Same vendor: erlang
-
CVE-2026-65634
Superlinear CPU denial of service in Erlang/OTP ASN.1 OBJECT -
CVE-2026-68956
SSH daemon allocates unbounded idle session channels, bypass -
CVE-2026-89422
TLS 1.3 client skips server authentication when ServerHello -
CVE-2026-69664
httpd parks a request worker indefinitely on a malformed chu -
CVE-2026-70409
eldap does not bound the port component of a referral URL be
Same weakness: CWE-440
-
CVE-2026-93675
Langflow OSS is affected by multiple vulnerabilities -
CVE-2026-35191
QUIC Unvalidated Amplification Credit may be Over Accounted -
CVE-2026-16769
RS9116W/SiWx917 plaintext pause encryption request causes DO -
CVE-2026-65934
BT122 plaintext pause encryption request causes DOS -
CVE-2026-65932
BT122 stops advertising
V. Comments for CVE-2025-46712
No comments yet