CVE-2025-32433
Erlang Erlang/OTP SSH Server Missing Authentication for Critical Function Vulnerability
IN CISA KEV
Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.3, OTP-26.2.5.11, and OTP-25.3.2.20, a SSH server may allow an attacker to perform unauthenticated remote code execution (RCE). By exploiting a flaw in SSH protocol message handling, a malicious actor could gain unauthorized access to affected systems and execute arbitrary commands without valid credentials. This issue is patched in versions OTP-27.3.3, OTP-26.2.5.11, and OTP-25.3.2.20. A temporary workaround involves disabling the SSH server or to prevent access via firewall rules.
- Vendor
- Erlang
- Product
- Erlang/OTP
- CVSS 3.1
- 10 (critical), scored by security-advisories@github.comCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- CWE
- CWE-306
- Published
- 2025-04-16
- NVD modified
- 2026-06-17
- NVD status
- Analyzed
CISA KEV
- Date added
- 2025-06-09
- Due date
- 2025-06-30
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS
98.8% chance of exploitation in the next 30 days (percentile 99th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- github.com (Patch)
- github.com (Patch)
- github.com (Patch)
- github.com (Vendor Advisory)
- www.openwall.com (Mailing List)
- www.openwall.com (Mailing List)
- www.openwall.com (Mailing List)
- www.openwall.com (Mailing List)
- www.openwall.com (Mailing List)
- lists.debian.org (Third Party Advisory)
- security.netapp.com (Third Party Advisory)
- sec.cloudapps.cisco.com (Third Party Advisory)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.