Critical - CVSS 9.1
Added 6/9/2025

Erlang Erlang/OTP SSH Server Missing Authentication for Critical Function Vulnerability

CVE-2025-32433
Action was due by: 6/30/2025
CISA Known Exploited Vulnerability

This vulnerability is part of CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating active exploitation in the wild.

Overview

Erlang Erlang/OTP SSH server contains a missing authentication for critical function vulnerability. This could allow an attacker to execute arbitrary commands without valid credentials, potentially leading to unauthenticated remote code execution (RCE). By exploiting a flaw in how SSH protocol messages are handled, a malicious actor could gain unauthorized access to affected systems. This vulnerability could affect various products that implement Erlang/OTP SSH server, including—but not limited to—Cisco, NetApp, and SUSE.

Vendor

Erlang

Product

Erlang/OTP

Category

Software
Technical Details

Affected Versions

See vendor advisory

Technical Description

This vulnerability was identified in Erlang/OTP by Erlang. Erlang Erlang/OTP SSH server contains a missing authentication for critical function vulnerability. This could allow an attacker to execute arbitrary commands without valid credentials, potentially leading to unauthenticated remote code execution (RCE). By exploiting a flaw in how SSH protocol messages are handled, a malicious actor could gain unauthorized access to affected systems. This vulnerability could affect various products that implement Erlang/OTP SSH server, including—but not limited to—Cisco, NetApp, and SUSE.

Exploitability

Medium - Publicly disclosed

Impact

Complete system compromise possible

Additional Notes

This vulnerability affects a common open-source project, third-party library, or a protocol used by different products. For more information, please see: https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2 ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy ; https://nvd.nist.gov/vuln/detail/CVE-2025-32433

Required Action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Due Date: 6/30/2025