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CVE-2015-1355

11
FAUCET Score

CVE-2015-1355 describes a weak password-hash algorithm in Siemens SIMATIC STEP 7 (TIA Portal) prior to version 13 SP1. This vulnerability allows local attackers to easily recover cleartext passwords from project files using brute-force techniques. The CVSS score of 2.1 indicates low severity, with a local attack vector, low complexity, and potential for confidentiality impact. There is no evidence of active exploitation, nor is there publicly available exploit code in Metasploit, Nuclei, or ExploitDB, and community discussion and media coverage have been minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 13.0CPE matchmatch criteria
cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 39th percentile among its peer group of 2,096 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

siemens.com / innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-234789.pdf
Vendor Advisory