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Fencer Intel
low 2.1

CVE-2015-1355 json

Siemens SIMATIC STEP 7 (TIA Portal) before 13 SP1 uses a weak password-hash algorithm, which makes it easier for local users to determine c…

published 2015-02-18 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-1494

cvss
2.1
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-15-048-01 updated cvss 2.1

Siemens SIMATIC STEP 7 TIA Portal Vulnerabilities

  • Siemens SIMATIC STEP 7 TIA Portal <V13_SP1
    affected: mitigation “Siemens provides Service Pack 1 for STEP 7 TIA Portal V13, which mitigates the vulnerabilities.http://support.automation.siemens.com/WW/view/en/105825934”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.37% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.