#VU107594 Missing Authentication for Critical Function in otp - CVE-2025-32433
Vulnerability identifier: #VU107594
Vulnerability risk: Critical
CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]
CVE-ID:
CWE-ID:
CWE-306
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
otp
Other software /
Other software solutions
Vendor: erlang
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to missing authentication in Erlang/OTP SSH server. A remote non-authenticated attacker can send specially crafted messages to the server and execute arbitrary code on the system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
otp: 25.0, 25.0.1, 25.0.2, 25.0.3, 25.0.4, 25.1, 25.1.1, 25.1.2, 25.1.2.1, 25.2, 25.2.1, 25.2.2, 25.2.3, 25.3, 25.3.1, 25.3.2, 25.3.2.1, 25.3.2.2, 25.3.2.3, 25.3.2.4, 25.3.2.5, 25.3.2.6, 25.3.2.7, 25.3.2.8, 25.3.2.9, 25.3.2.10, 25.3.2.11, 25.3.2.12, 25.3.2.13, 25.3.2.14, 25.3.2.15, 25.3.2.16, 25.3.2.17, 25.3.2.18, 25.3.2.19, 26.0, 26.0.1, 26.0.2, 26.1, 26.1.1, 26.1.2, 26.2, 26.2.1, 26.2.2, 26.2.3, 26.2.4, 26.2.5, 26.2.5.1, 26.2.5.2, 26.2.5.3, 26.2.5.4, 26.2.5.5, 26.2.5.6, 26.2.5.7, 26.2.5.8, 26.2.5.9, 26.2.5.10, 27.0, 27.0.1, 27.1, 27.1.1, 27.1.2, 27.1.3, 27.2, 27.2.1, 27.2.2, 27.2.3, 27.2.4, 27.3, 27.3.1, 27.3.2
External links
https://www.openwall.com/lists/oss-security/2025/04/16/2
https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12
https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891
https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
