NVD / CVE Program· CNA mitre

CVE-2023-33411: A web server in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation on Supermicro X11

Noroxi assessment

Priority: Monitor (action score 30/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 1.2% (FIRST EPSS); higher than 69.9% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A web server in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation on Supermicro X11 and M11 based devices, with firmware versions up to 3.17.02, allows remote unauthenticated users to perform directory traversal, potentially disclosing sensitive information.

HighCVSS 7.5 · v3.1—No exploit No fix recorded

Published: Dec 7, 2023
Updated: Jul 9, 2026
EPSS: 1.2% · 69th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 30 / 40 · 7.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 1.2%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
supermicro	x13san-l	cpe:2.3:h:supermicro:x13san-l
supermicro	m11sdv-4c-ln4f firmware	cpe:2.3:o:supermicro:m11sdv-4c-ln4f_firmware
supermicro	m11sdv-4c-ln4f	cpe:2.3:h:supermicro:m11sdv-4c-ln4f
supermicro	m11sdv-4ct-ln4f firmware	cpe:2.3:o:supermicro:m11sdv-4ct-ln4f_firmware
supermicro	m11sdv-4ct-ln4f	cpe:2.3:h:supermicro:m11sdv-4ct-ln4f
supermicro	m11sdv-8c-ln4f firmware	cpe:2.3:o:supermicro:m11sdv-8c-ln4f_firmware
supermicro	m11sdv-8c-ln4f	cpe:2.3:h:supermicro:m11sdv-8c-ln4f
supermicro	m11sdv-8ct-ln4f firmware	cpe:2.3:o:supermicro:m11sdv-8ct-ln4f_firmware
supermicro	m11sdv-8ct-ln4f	cpe:2.3:h:supermicro:m11sdv-8ct-ln4f
supermicro	m11sdv-8c\+-ln4f firmware	cpe:2.3:o:supermicro:m11sdv-8c\+-ln4f_firmware
supermicro	m11sdv-8c\+-ln4f	cpe:2.3:h:supermicro:m11sdv-8c\+-ln4f
supermicro	c9x299-pg firmware	cpe:2.3:o:supermicro:c9x299-pg_firmware

and 188 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

supermicro b12dpe-6 firmwareup to 3.17.02 inclusive
supermicro b12dpt-6 firmwareup to 3.17.02 inclusive
supermicro b12spe-cpu-25g firmwareup to 3.17.02 inclusive
supermicro b13dee firmwareup to 3.17.02 inclusive
supermicro b13det firmwareup to 3.17.02 inclusive
supermicro b13see-cpu-25g firmwareup to 3.17.02 inclusive
supermicro b13seg firmwareup to 3.17.02 inclusive
supermicro c9x299-pg firmwareup to 3.17.02 inclusive
supermicro c9x299-pg300 firmwareup to 3.17.02 inclusive
supermicro c9x299-pg300f firmwareup to 3.17.02 inclusive
supermicro c9x299-pgf firmwareup to 3.17.02 inclusive
supermicro c9x299-pgf-l firmwareup to 3.17.02 inclusive
supermicro c9x299-rpgf firmwareup to 3.17.02 inclusive
supermicro c9x299-rpgf-l firmwareup to 3.17.02 inclusive
supermicro h12dgo-6 firmwareup to 3.17.02 inclusive
supermicro h12dgq-nt6 firmwareup to 3.17.02 inclusive
supermicro h12dsg-o-cpu firmwareup to 3.17.02 inclusive
supermicro h12dsg-q-cpu6 firmwareup to 3.17.02 inclusive
supermicro h12dsi-n6 firmwareup to 3.17.02 inclusive
supermicro h12dsi-nt6 firmwareup to 3.17.02 inclusive

Same product

supermicro: all records

Other highest-scoring records for the same primary product.

CVE-2023-33413The configuration functionality in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation
35Monitor
CVE-2023-33412The web interface in the Intelligent Platform Management Interface (IPMI) baseboard management controller (BMC) implementation on Supermicro
35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: none
Availability: none

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: None
Availability impact: None

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);
2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);
2if (!file.startsWith(ROOT + path.sep)) {
3  return res.sendStatus(400);
4}
5res.sendFile(file);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

www.supermicro.com/en/support/security_BMC_Dec_2023

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records