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Vulnerability record · CVE-2017-12737 · published 15 November 2017

CVE-2017-12737: Siemens sm-2556 firmware information exposure vulnerability

Siemens · Sm 2556 Firmware

An issue was discovered on Siemens SICAM RTUs SM-2556 COM Modules with the firmware variants ENOS00, ERAC00, ETA2, ETLS00, MODi00, and DNPi00. The integrated web server (port 80/tcp) of the affected devices could allow unauthenticated remote attackers to obtain sensitive device information over the network.

5.3 CVSS 3.0 Medium EPSS 1.7% · top 23.2% CWE-200 · Information exposure
5.3CVSS 3.0 base score, v2 5.0
1.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

An issue was discovered on Siemens SICAM RTUs SM-2556 COM Modules with the firmware variants ENOS00, ERAC00, ETA2, ETLS00, MODi00, and DNPi00. The integrated web server (port 80/tcp) of the affected devices could allow unauthenticated remote attackers to obtain sensitive device information over the network.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/101884 Third Party AdvisoryVDB Entry
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-164516.pdf MitigationVendor Advisory
http://www.securityfocus.com/bid/101884 Third Party AdvisoryVDB Entry
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-164516.pdf MitigationVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2017-12737), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.