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CVE

CVE-2025-32433

Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
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CVE

CVE-2025-32433

Erlang/OTP SSH Vulnerable to Pre-Authentication RCE

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
10
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

http://www.openwall.com/lists/oss-security/2025/04/16/2, http://www.openwall.com/lists/oss-security/2025/04/18/1, http://www.openwall.com/lists/oss-security/2025/04/18/2, http://www.openwall.com/lists/oss-security/2025/04/18/6, http://www.openwall.com/lists/oss-security/2025/04/19/1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/32xxx/CVE-2025-32433.json, https://github.com/ProDefense/CVE-2025-32433/blob/main/CVE-2025-32433.py, 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, https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html, https://nvd.nist.gov/vuln/detail/CVE-2025-32433, https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-erlang-otp-ssh-xyZZy, https://security.netapp.com/advisory/ntap-20250425-0001/, https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32433

Severity

10

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
10
EPSS Probability
0.48106%
EPSS Percentile
0.97629%
Introduced Version
b74bd21d5cb52e0fdc5ea321439c428783feea23,127026003180a834e9fa5d5919c824a184faeb92,0
Fix Available
10e20b1dbe39b056fab430e50b08cb4f3696ae87,9f6c4eb54823324d1e6f8cb95c15feb09f09044e,ae0052c7f891ce805e2b53493a5304e2ee008aeb,1:25.2.3+dfsg-1+deb12u1,1:23.2.6+dfsg-1+deb11u2,1:27.3.3+dfsg-1,1:25.3.2.8+dfsg-1ubuntu4.3,1:20.2.2+dfsg-1ubuntu2+esm1,1:22.2.7+dfsg-1ubuntu0.5,1:24.2.1+dfsg-1ubuntu0.4,26.2.5.11-r0

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