4.3

CVE-2012-3037: siemens simatic_s7-1200_firmware Improper Certificate Validation

CVSS: 4.3v2.0MediumModified
Published 25-09-2012Last modified 23-05-2025
Open JSON

Vulnerability summary

CVE-2012-3037 is a medium (CVSS 4.3) Improper Certificate Validation vulnerability in siemens simatic_s7-1200_firmware. EPSS estimates a 1.47% chance of exploitation in the next 30 days, higher than 73.3% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
1.47%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 25-09-2012
    PublishedVulnerability first disclosed.
  2. 23-05-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.47%

Chance of exploitation in the next 30 days

Percentile

73%

Versus all other CVEs

30-day change

0.00 pp

From 1.47% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Siemens9 products

1 vendor · 9 products

References

3 links