CVE-2023-40285
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn issue was discovered on Supermicro X11SSM-F, X11SAE-F, and X11SSE-F 1.66 devices. An attacker could exploit an XSS issue.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · low confidenceA Cross-Site Scripting (XSS) vulnerability exists in the web management interface of Supermicro X11SSM-F, X11SAE-F, and X11SSE-F firmware version 1.66. An attacker could inject malicious JavaScript into the web interface, potentially stealing session cookies or performing actions on behalf of authenticated users.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 1.66= 1.66= 1.66CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the Supermicro board modelAccess the physical server or use IPMI to retrieve the board model information from the BMC web interface login page, BIOS startup screen, or by querying the BMC via IPMI command: ipmitool -I lanplus -H <BMC_IP> -U <user> -P <pass> raw command to read FRU dataAffected if Model is X11SSM-F, X11SAE-F, or X11SSE-F
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Check the installed firmware versionLog into the BMC web interface and navigate to the Firmware Update or Maintenance section to view the current firmware version. Alternatively, use IPMI: ipmitool -I lanplus -H <BMC_IP> -U <user> -P <pass> mc infoAffected if Firmware version is exactly 1.66
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Verify the web management interface is enabledCheck BMC settings via IPMI: ipmitool -I lanplus -H <BMC_IP> -U <user> -P <pass> raw command to query web server status, or visually confirm the web interface is accessible via HTTP/HTTPS on ports 80 or 443Affected if The BMC web management interface is accessible and enabled
You are affected if your board model is X11SSM-F, X11SAE-F, or X11SSE-F AND the firmware version is exactly 1.66 AND the web management interface is enabled.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply any vendor-supplied firmware updates when available. Until then, restrict network access to the management interface to trusted IPs only, and consider disabling the web interface if not required.
- Consultation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-40285 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2023-40285 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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