What is CVE-2017-12739?

CVE-2017-12739 is a critical-severity vulnerability in Siemens Sm-2556, classified under Initialization of a Resource with an Insecure Default. CVSS score: 9.8/10. Published 2017-11-15.

How severe is CVE-2017-12739?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Siemens Sm-2556

CVE-2017-12739

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.

EPSS: 0.056 (92.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Siemens Sm-2556
Siemens Sm-2556_firmware — versions dnpi00, enos00, erac00
N/a Siemens Sicam Rtus Sm-2556 Com Modules With The Firmware Variants Enos00, Erac00, Eta2, Etls00, Modi00, And Dnpi00 — versions Siemens SICAM RTUs SM-2556 COM Modules with the firmware variants ENOS00, ERAC00, ETA2, ETLS00, MODi00, and DNPi00

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

References

productcert@siemens.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
productcert@siemens.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2017-12739?: CVE-2017-12739 is a critical-severity vulnerability in Siemens Sm-2556, classified under Initialization of a Resource with an Insecure Default. CVSS score: 9.8/10. Published 2017-11-15.
How severe is CVE-2017-12739?: Critical severity. CVSS v3 base score is 9.8 out of 10.