All vulnerabilities

Servers and applications

CVE-2025-32433

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…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 9 Jun 2025.

Severity
Critical 10.0
Published
16 Apr 2025
Last changed
17 Jun 2026
Added to UpHeron
16 Oct 2026
Fixed in
25.3.2.20, 26.2.5.11, 27.3.3
Sources
NVD

Affected software

SoftwareAffected versions
Erlang/OTPServers and applications · cpe:a:erlang:erlang\/otp
  • Every version before 25.3.2.20
  • From 26.0 before 26.2.5.11
  • From 27.0 before 27.3.3

Known exploited

CISA name
Erlang Erlang/OTP SSH Server Missing Authentication for Critical Function Vulnerability
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.
Due for US agencies
30 Jun 2025
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2025-32433
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2025-32433