TI-2012-02634 Aliases CVE-2012-3037 GHSA-cq39-26j4-6jcj

The Siemens SIMATIC S7-1200 2.x PLC does not properly protect the private key of the…

LOW 23CWE-295Published 2012-09-25 · Updated 2025-05-23

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Medium
Impact type: Spoofing
Confidentiality · integrity · availability: Partial · None · None
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

The Siemens SIMATIC S7-1200 2.x PLC does not properly protect the private key of the SIMATIC CONTROLLER Certification Authority certificate, which allows remote attackers to spoof the S7-1200 web server by using this key to create a forged certificate.

Why it matters now

EPSS 0.01472 73rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 18

CPE	Versions	Role	Vendor
cpe:2.3:o:siemens:simatic_s7-1200_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1211c_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1211c:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212c_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1212c:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212fc_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1212fc:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214_fc_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1214_fc:-:::::::*	not specified by NVD	Running on	Siemens

cpe:2.3:o:siemens:simatic_s7-1200_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1211c_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1211c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212c_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1212c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1212fc_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1212fc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214_fc_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1214_fc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Show 8 more CPE

CPE	Versions	Role	Vendor
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214c_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1214c:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215_fc_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1215_fc:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215c_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1215c:-:::::::*	not specified by NVD	Running on	Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1217c_firmware::::::::	2.0.0 to before 3.0.0	Vulnerable	Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1217c:-:::::::*	not specified by NVD	Running on	Siemens

cpe:2.3:o:siemens:simatic_s7-1200_cpu_1214c_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1214c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215_fc_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1215_fc:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1215c_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1215c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
cpe:2.3:o:siemens:simatic_s7-1200_cpu_1217c_firmware:*:*:*:*:*:*:*:* Versions 2.0.0 to before 3.0.0 Vulnerable ·Siemens
cpe:2.3:h:siemens:simatic_s7-1200_cpu_1217c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2012-3037
2026-10-03 Alias added: GHSA-cq39-26j4-6jcj

References

Advisory 3

TI-2021-02413 NULL pointer deref in signature_algorithms processing CVSS 3.1MEDIUM 5.9
TI-2021-15266 A vulnerability has been identified in SIMATIC Drive Controller family (All versions <… CVSS 3.1HIGH 7.5
TI-2021-15247 A vulnerability has been identified in SIMATIC Drive Controller family (All versions >=… CVSS 3.1HIGH 7.5
TI-2019-08156 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 3.1HIGH 7.5
TI-2021-15267 Memory leak in Siemens SIMATIC Drive Controller family CVSS 3.1HIGH 7.5
TI-2021-17434 Improper input validation in Siemens SIMATIC Drive Controller CPU 1504D TF CVSS 3.1HIGH 7.5

See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences