CVE-2013-3620Network attack vector

Unauthenticated WSMan access via immutable credentials

Published Jan 2, 2020 · Updated Aug 6, 2024

Hardcoded credentials in Supermicro IPMI firmware before SMT_X9_315 and SMT X8 312 allow remote attackers to access the WSMan interface. The OpenWSMan digest file contains an immutable static-password account, while an nv-partition bug leaves its basic-auth ADMIN password set to admin after password changes. Network reachability to OpenWSMan is required; either credential defeats configured password changes and exposes management data.

CVSS severity7.5
High
EPSS probability3.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hardcoded credentials in Supermicro IPMI firmware before SMT_X9_315 and SMT X8 312 allow remote attackers to access the WSMan interface. The OpenWSMan digest file contains an immutable static-password account, while an nv-partition bug leaves its basic-auth ADMIN password set to admin after password changes. Network reachability to OpenWSMan is required; either credential defeats configured password changes and exposes management data.

The record

CVE
CVE-2013-3620
Published
Jan 2, 2020
Updated
Aug 6, 2024
Vendor
Supermicro
Product
Supermicro IPMI
Classifications
CWE-522, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 2, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before 3.15 (SMT_X9_315) and before SMT X8 312

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Supermicro · Supermicro IPMIversion=before 3.15 (SMT_X9_315) and before SMT X8 312

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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