SARA / Free Tools / CVE / CVE-2018-7758

CVE-2018-7758 — A denial of service vulnerability exists in Schneider Electric's MiCOM Px4x (P54

A denial of service vulnerability exists in Schneider Electric's MiCOM Px4x (P540 range excluded) with legacy Ethernet board, MiCOM P540D Range with Legacy Ethernet Board, and MiCOM Px4x Rejuvenated could lose network communication in case of TCP/IP open requests on port 200

CVSS
— —
EPSS
0.13% (top 67.60%)
CWE
—
Published
2018-04-18T20:00:00.000Z
Last modified
2024-08-05T06:37:57.963Z
CVSS vector
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01What is this vulnerability?

A denial of service vulnerability exists in Schneider Electric's MiCOM Px4x (P540 range excluded) with legacy Ethernet board, MiCOM P540D Range with Legacy Ethernet Board, and MiCOM Px4x Rejuvenated could lose network communication in case of TCP/IP open requests on port 20000 (DNP3oE) if an older TCI/IP session is still open with identical IP address and port number.

02Affected products

VendorProductVersions
Schneider Electric SEMiCOM P540D Range with Legacy Ethernet BoardMiCOM P540D Range with Legacy Ethernet Board, MiCOM Px4x with Legacy Ethernet Board, MiCOM Px4x Rejuvenated

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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