Erlang Erlang/OTP SSH Server Missing Authentication for Critical Function
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2025-06-30 · passed 1 year 2 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Erlang Erlang/OTP. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-306.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 1 year 2 months ago
Sources
- NVD entry for CVE-2025-32433 nvd.nist.gov/vuln/detail/CVE-2025-32433
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- github.com github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2
- sec.cloudapps.cisco.com sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2025-32433