CVE-2025-32433

CRITICALNVD 10.010.0—
EchelonGraph scoreHIGH confidence

Score elevated to 10.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-06-09), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 10.0 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, nvd
Trending — 4 sources updated this weekExploited in the wild
10.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 99%CVSS: 10.0Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 0

A fix is available — apply it.

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.

CVSS v3
10.0
EG Score
10.0(high)
EG Risk
100(Act)
EG Risk 100/100SSVC: Act

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity100% × 45%
Exploitation100% × 40%
Automatability100% × 15%
Action: Fix now — active exploitation, automatable, high impact.
EPSS PROB
99%
EPSS %ILE
100%
KEV
⚠ Exploited

Published

April 16, 2025

Last Modified

November 4, 2025

Advisory Details (10)

Auto-updated Sep 19, 2026
Patch available. Sources: github_commit, github.
generic Patch Available

[SECURITY] [DLA 4132-1] erlang security update

https://lists.debian.org/debian-lts-announce/2025/04/msg00028.html
generic

oss-security - Re: CVE-2025-32433: Unauthenticated Remote Code Execution in Erlang/OTP SSH

http://www.openwall.com/lists/oss-security/2025/04/19/1
generic

oss-security - Re: CVE-2025-32433: Unauthenticated Remote Code Execution in Erlang/OTP SSH

http://www.openwall.com/lists/oss-security/2025/04/18/6
generic

oss-security - Re: CVE-2025-32433: Unauthenticated Remote Code Execution in Erlang/OTP SSH

http://www.openwall.com/lists/oss-security/2025/04/18/2
generic

oss-security - Re: CVE-2025-32433: Unauthenticated Remote Code Execution in Erlang/OTP SSH

http://www.openwall.com/lists/oss-security/2025/04/18/1
generic

oss-security - CVE-2025-32433: Unauthenticated Remote Code Execution in Erlang/OTP SSH

http://www.openwall.com/lists/oss-security/2025/04/16/2
github Patch Available

Unauthenticated Remote Code Execution in Erlang/OTP SSH · Advisory · erlang/otp · GitHub

https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2
github_commit

commit b1924d37fd83 (erlang/otp)

Fix landed in erlang/otp commit b1924d37fd83 — awaiting tagged release

https://github.com/erlang/otp/commit/b1924d37fd83c070055beb115d5d6a6a9490b891
github_commit

commit 6eef04130afc (erlang/otp)

Fix landed in erlang/otp commit 6eef04130afc — awaiting tagged release

https://github.com/erlang/otp/commit/6eef04130afc8b0ccb63c9a0d8650209cf54892f
github_commit

commit 0fcd9c56524b (erlang/otp)

Fix landed in erlang/otp commit 0fcd9c56524b — awaiting tagged release

https://github.com/erlang/otp/commit/0fcd9c56524b28615e8ece65fc0c3f66ef6e4c12

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntuerlang-xmerl (1:18.3-dfsg-1ubuntu3.1+esm1) @ xenial2026-09-20ubuntu
ubuntuerlang-xmerl (1:24.2.1+dfsg-1ubuntu0.4) @ jammy2026-09-20ubuntu
ubuntuerlang-xmerl (1:27.3+dfsg-1ubuntu1.1) @ plucky2026-09-20ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
erlang1:23.2.6+dfsg-1, 1:23.2.6+dfsg-1+deb11u11:23.2.6+dfsg-1+deb11u2—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
erlang1:25.2.3+dfsg-11:25.2.3+dfsg-1+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
erlang—1:27.3.3+dfsg-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
erlang—1:27.3.3+dfsg-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 48× in last 7d / 213× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 788 total refreshes for this CVE.

  1. 2026-09-20 20:25 UTCVendor advisory
  2. 2026-09-20 16:28 UTCVendor advisory
  3. 2026-09-20 12:32 UTCVendor advisory
  4. 2026-09-20 08:36 UTCVendor advisory
  5. 2026-09-20 04:40 UTCVendor advisory
  6. 2026-09-20 00:44 UTCVendor advisory
  7. 2026-09-19 20:48 UTCVendor advisory
  8. 2026-09-19 16:52 UTCVendor advisory
  9. 2026-09-19 12:56 UTCVendor advisory
  10. 2026-09-19 09:00 UTCVendor advisory
  11. 2026-09-19 05:04 UTCVendor advisory
  12. 2026-09-19 01:07 UTCVendor advisory
  13. 2026-09-18 21:12 UTCVendor advisory
  14. 2026-09-18 19:20 UTCCISA KEV update
  15. 2026-09-18 17:16 UTCVendor advisory
  16. 2026-09-18 14:15 UTCCISA KEV update
  17. 2026-09-18 13:20 UTCVendor advisory
  18. 2026-09-18 09:24 UTCVendor advisory
  19. 2026-09-18 05:28 UTCVendor advisory
  20. 2026-09-18 01:32 UTCVendor advisory
  21. 2026-09-17 21:36 UTCVendor advisory
  22. 2026-09-17 17:40 UTCVendor advisory
  23. 2026-09-17 13:44 UTCVendor advisory
  24. 2026-09-17 09:48 UTCVendor advisory
  25. 2026-09-17 05:51 UTCVendor advisory
Show 75 more
  1. 2026-09-17 01:55 UTCVendor advisory
  2. 2026-09-16 21:59 UTCVendor advisory
  3. 2026-09-16 18:03 UTCEG score recompute
  4. 2026-09-16 18:03 UTCVendor advisory
  5. 2026-09-16 14:10 UTCCISA KEV update
  6. 2026-09-16 14:07 UTCEPSS rescore
  7. 2026-09-16 14:06 UTCVendor advisory
  8. 2026-09-16 10:10 UTCVendor advisory
  9. 2026-09-16 06:14 UTCVendor advisory
  10. 2026-09-16 02:17 UTCVendor advisory
  11. 2026-09-15 22:21 UTCVendor advisory
  12. 2026-09-15 18:24 UTCVendor advisory
  13. 2026-09-15 14:28 UTCVendor advisory
  14. 2026-09-15 10:32 UTCVendor advisory
  15. 2026-09-15 06:36 UTCVendor advisory
  16. 2026-09-15 02:40 UTCVendor advisory
  17. 2026-09-14 22:44 UTCVendor advisory
  18. 2026-09-14 19:24 UTCCISA KEV update
  19. 2026-09-14 18:48 UTCVendor advisory
  20. 2026-09-14 14:52 UTCVendor advisory
  21. 2026-09-14 10:56 UTCVendor advisory
  22. 2026-09-14 07:00 UTCVendor advisory
  23. 2026-09-14 03:04 UTCVendor advisory
  24. 2026-09-13 23:07 UTCVendor advisory
  25. 2026-09-13 19:11 UTCVendor advisory
  26. 2026-09-13 15:15 UTCVendor advisory
  27. 2026-09-13 11:18 UTCVendor advisory
  28. 2026-09-13 07:22 UTCVendor advisory
  29. 2026-09-13 03:27 UTCVendor advisory
  30. 2026-09-12 23:31 UTCVendor advisory
  31. 2026-09-12 19:35 UTCVendor advisory
  32. 2026-09-12 15:39 UTCEG score recompute
  33. 2026-09-12 15:39 UTCVendor advisory
  34. 2026-09-12 15:00 UTCEPSS rescore
  35. 2026-09-12 11:43 UTCVendor advisory
  36. 2026-09-12 07:45 UTCVendor advisory
  37. 2026-09-12 03:49 UTCVendor advisory
  38. 2026-09-11 23:53 UTCVendor advisory
  39. 2026-09-11 19:57 UTCVendor advisory
  40. 2026-09-11 18:49 UTCCISA KEV update
  41. 2026-09-11 16:01 UTCVendor advisory
  42. 2026-09-11 12:05 UTCVendor advisory
  43. 2026-09-11 08:09 UTCVendor advisory
  44. 2026-09-11 04:13 UTCVendor advisory
  45. 2026-09-11 00:17 UTCVendor advisory
  46. 2026-09-10 20:21 UTCVendor advisory
  47. 2026-09-10 19:28 UTCCISA KEV update
  48. 2026-09-10 16:25 UTCVendor advisory
  49. 2026-09-10 12:29 UTCVendor advisory
  50. 2026-09-10 08:33 UTCVendor advisory
  51. 2026-09-10 04:37 UTCVendor advisory
  52. 2026-09-10 00:41 UTCVendor advisory
  53. 2026-09-09 20:45 UTCVendor advisory
  54. 2026-09-09 19:08 UTCCISA KEV update
  55. 2026-09-09 16:49 UTCVendor advisory
  56. 2026-09-09 12:53 UTCVendor advisory
  57. 2026-09-09 08:57 UTCVendor advisory
  58. 2026-09-09 05:00 UTCVendor advisory
  59. 2026-09-09 01:04 UTCVendor advisory
  60. 2026-09-08 21:02 UTCVendor advisory
  61. 2026-09-08 18:54 UTCCISA KEV update
  62. 2026-09-08 17:06 UTCVendor advisory
  63. 2026-09-08 13:08 UTCVendor advisory
  64. 2026-09-08 09:10 UTCVendor advisory
  65. 2026-09-08 05:14 UTCVendor advisory
  66. 2026-09-08 01:17 UTCVendor advisory
  67. 2026-09-07 21:22 UTCVendor advisory
  68. 2026-09-07 17:26 UTCVendor advisory
  69. 2026-09-07 13:30 UTCVendor advisory
  70. 2026-09-07 09:31 UTCVendor advisory
  71. 2026-09-07 05:35 UTCVendor advisory
  72. 2026-09-07 01:37 UTCVendor advisory
  73. 2026-09-06 21:42 UTCVendor advisory
  74. 2026-09-06 17:46 UTCVendor advisory
  75. 2026-09-06 13:50 UTCVendor advisory

Publicly available exploits

(10 references)

Working exploit code is in the public domain (10 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCNiteeshPujari/CVE-2025-32433-PoC
    First seen Aug 13, 2025

    CVE-2025-32433 PoC: Unauthenticated Remote Code Execution (RCE) in Erlang/OTP SSH. A proof-of-concept exploit for CVE-2025-32433

    Open source ↗
  • GitHub PoC0x7556/CVE-2025-32433
    First seen Apr 25, 2025

    CVE-2025-32433 Erlang/OTP SSH RCE Exploit SSH远程代码执行漏洞EXP

    Open source ↗
  • GitHub PoC0xPThree/cve-2025-32433
    First seen Apr 19, 2025
    Open source ↗
  • GitHub PoCm0usem0use/erl_mouse
    First seen Apr 18, 2025

    python script to find vulnerable targets of CVE-2025-32433

    Open source ↗
  • GitHub PoCdarses/CVE-2025-32433
    First seen Apr 18, 2025

    Security research on Erlang/OTP SSH CVE-2025-32433.

    Open source ↗
  • GitHub PoCLemieOne/CVE-2025-32433
    First seen Apr 18, 2025

    Missing Authentication for Critical Function (CWE-306)-Exploit

    Open source ↗
  • GitHub PoCexa-offsec/ssh_erlangotp_rce
    First seen Apr 18, 2025

    Exploitation module for CVE-2025-32433 (Erlang/OTP)

    Open source ↗
  • GitHub PoCekomsSavior/POC_CVE-2025-32433
    First seen Apr 18, 2025
    Open source ↗
  • GitHub PoCProDefense/CVE-2025-32433
    First seen Apr 18, 2025

    CVE-2025-32433 https://github.com/erlang/otp/security/advisories/GHSA-37cp-fgq5-7wc2

    Open source ↗
  • GitHub PoComer-efe-curkus/CVE-2025-32433-Erlang-OTP-SSH-RCE-PoC
    First seen Apr 18, 2025

    The vulnerability allows an attacker with network access to an Erlang/OTP SSH server to execute arbitrary code without prior authentication.

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2025-32433?
CVE-2025-32433 is a critical vulnerability published on April 16, 2025. 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…
When was CVE-2025-32433 disclosed?
CVE-2025-32433 was first published in the National Vulnerability Database on April 16, 2025, with the most recent update on November 4, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-32433 actively exploited?
Yes. CISA added CVE-2025-32433 to the Known Exploited Vulnerabilities catalog on June 9, 2025, affecting Erlang Erlang/OTP. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2025-32433?
CVE-2025-32433 has a CVSS v3 base score of 10.0 (NVD).
Which products are affected by CVE-2025-32433?
CVE-2025-32433 affects Erlang Erlang/OTP. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2025-32433?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-32433, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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