CVE-2017-12739
The integrated web server (port 80/tcp) of the affected devices could allow unauthenticated remote attackers to execute arbitrary code on the affected device.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 execute arbitrary code on the affected device.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.65% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-1188
- Affected
- siemens/sm-2556 firmware
- Source
- productcert@siemens.com
EPSS 5.6% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/101884Third Party Advisory, VDB Entry
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-164516.pdfMitigation, Vendor Advisory
- http://www.securityfocus.com/bid/101884Third Party Advisory, VDB Entry
- https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-164516.pdfMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.