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Vulnerability record · CVE-2015-1355 · published 18 February 2015

CVE-2015-1355: Siemens simatic step 7 vulnerability

Siemens · Simatic Step 7

Siemens SIMATIC STEP 7 (TIA Portal) before 13 SP1 uses a weak password-hash algorithm, which makes it easier for local users to determine cleartext passwords by reading a project file and conducting a brute-force attack.

2.1 CVSS 2.0 Low EPSS 0.37% · top 71.5% CWE-310 · CWE-310
2.1CVSS 2.0 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Siemens SIMATIC STEP 7 (TIA Portal) before 13 SP1 uses a weak password-hash algorithm, which makes it easier for local users to determine cleartext passwords by reading a project file and conducting a brute-force attack.

AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

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

References

LinkTags
http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-234789.pdf Vendor Advisory
http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-234789.pdf Vendor Advisory

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Related vulnerabilities

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

8.8CVE-2023-25910Siemens simatic pcs 7 code injection vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 (All versions < V9.1 SP2 UC04), SIMATIC S7-PM (All versions < V5.7 SP1 HF1), SIMATIC S7-PM (All …EPSS 1.0%8.2CVE-2020-7587Siemens opcenter execution discrete uncontrolled resource consumption vulnerabilityA vulnerability has been identified in Opcenter Execution Discrete (All versions < V3.2), Opcenter Execution Foundation (All versions < V3.2), Opcent…EPSS 2.5%7.8CVE-2021-42029Siemens simatic step 7 improper access control vulnerabilityA vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) V15 (All versions), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 5),…EPSS 0.24%7.8CVE-2020-7585Siemens simatic pcs 7 uncontrolled search path element vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All …EPSS 0.45%7.8CVE-2020-7586Siemens simatic pcs 7 heap-based buffer overflow vulnerabilityA vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All …EPSS 0.42%6.9CVE-2015-1594Siemens starter vulnerabilityUntrusted search path vulnerability in Siemens SIMATIC ProSave before 13 SP1; SIMATIC CFC before 8.0 SP4 Upd9 and 8.1 before Upd1; SIMATIC STEP 7 bef…EPSS 0.40%6.9CVE-2012-3015Siemens simatic pcs7 vulnerabilityUntrusted search path vulnerability in Siemens SIMATIC STEP7 before 5.5 SP1, as used in SIMATIC PCS7 7.1 SP3 and earlier and other products, allows l…EPSS 0.46%6.8CVE-2015-1601Siemens simatic step 7 vulnerabilitySiemens SIMATIC STEP 7 (TIA Portal) 12 and 13 before 13 SP1 Upd1 allows man-in-the-middle attackers to obtain sensitive information or modify transmi…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2015-1355), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.