NVD / CVE Program· CNA Eaton

CVE-2023-43775: Security issue in SMP Gateway automation platform

Noroxi assessment

Priority: Monitor (action score 21/100)

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: 0.82% (FIRST EPSS); higher than 57.2% 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 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

Denial-of-service vulnerability in the web server of the Eaton SMP Gateway allows attacker to potentially force an unexpected restart of the automation platform, impacting the availability of the product. In rare situations, the issue could cause the SMP device to restart in Safe Mode or Max Safe Mode. When in Max Safe Mode, the product is not vulnerable anymore.

MediumCVSS 5.3 · v3.1—No exploit No fix recorded

Published: Sep 27, 2023
Updated: Jun 17, 2026
EPSS: 0.8% · 57th percentile
CWE: CWE-400

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.8%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 5.3
CNA · Eaton: 4.7; 0.6 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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
eaton	smp sg-4260 firmware	cpe:2.3:o:eaton:smp_sg-4260_firmware
eaton	smp sg-4260	cpe:2.3:h:eaton:smp_sg-4260
eaton	smp sg-4250 firmware	cpe:2.3:o:eaton:smp_sg-4250_firmware
eaton	smp sg-4250	cpe:2.3:h:eaton:smp_sg-4250
eaton	smp 4\/dp firmware	cpe:2.3:o:eaton:smp_4\/dp_firmware
eaton	smp 4\/dp	cpe:2.3:h:eaton:smp_4\/dp
eaton	smp 16 firmware	cpe:2.3:o:eaton:smp_16_firmware
eaton	smp 16	cpe:2.3:h:eaton:smp_16

Affected versions

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

eaton smp 16 firmware8.0 and later · before 8.0r9
eaton smp 16 firmware6.3
eaton smp 16 firmware7.0
eaton smp 16 firmware7.1
eaton smp 16 firmware7.2
eaton smp 4/dp firmware8.1 and later · before 8.1r5
eaton smp 4/dp firmware8.0 and later · before 8.0r9
eaton smp 4/dp firmware8.2 and later · before 8.2r4
eaton smp 4/dp firmware6.3
eaton smp 4/dp firmware7.0
eaton smp 4/dp firmware7.1
eaton smp 4/dp firmware7.2
eaton smp sg-4250 firmware8.1 and later · before 8.1r5
eaton smp sg-4250 firmware8.0 and later · before 8.0r9
eaton smp sg-4250 firmware8.2 and later · before 8.2r4
eaton smp sg-4250 firmware7.0
eaton smp sg-4250 firmware7.1
eaton smp sg-4250 firmware7.2
eaton smp sg-4260 firmware8.1 and later · before 8.1r5
eaton smp sg-4260 firmware8.0 and later · before 8.0r9

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Eaton). Independent of NVD's CPE analysis and usually ahead of it.

Eaton SMP 16
- 6.3, 7.0, 7.1, 7.2affected
- 8.0 and later · before 8.0R9affected
Eaton SMP 4/DP
- 6.3, 7.0, 7.1, 7.2affected
- 8.0 and later · before 8.0R9affected
- 8.1 and later · before 8.1R5affected
- 8.2 and later · before 8.2R4affected
Eaton SMP SG-4250
- 7.0, 7.1, 7.2affected
- 8.0 and later · before 8.0R9affected
- 8.1 and later · before 8.1R5affected
- 8.2 and later · before 8.2R4affected
Eaton SMP SG-4260
- 8.0 and later · before 8.0R9affected
- 8.1 and later · before 8.1R5affected
- 8.2 and later · before 8.2R4affected

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.

Communications Security Establishment, Canada.finder

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: none
Integrity: none
Availability: low · the service can be disrupted

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

Weakness class (CWE)

CWE-400 · Uncontrolled Resource Consumption

CVSS vector

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

nvd-primary

Root cause

Code that parses nested structures sets no depth or size limit. A small input can turn into a disproportionate processing load.

The bug in code

The whole CWE-400 class

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

Vulnerable

1function expand(node) {
2  return node.children.map(expand);
3}

Fixed

1const MAX_DEPTH = 32;
2function expand(node, depth = 0) {
3  if (depth > MAX_DEPTH) throw new Error("too deep");
4  return node.children.map((c) => expand(c, depth + 1));
5}

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

Endpoint Denial of ServiceT1499

Change log

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

References

www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/etn-va-2022-1008.pdf

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

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