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CVE-2013-3959: siemens simatic_pcs7

CVSS: 4.0v2.0MediumModified
Published 14-06-2013Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2013-3959 is a medium (CVSS 4.0) vulnerability in siemens simatic_pcs7. EPSS estimates a 1.33% chance of exploitation in the next 30 days, higher than 70.6% of scored vulnerabilities.

Overall risk
16/100
0100
Low · default modelHow is this calculated?
CVSS score
4.0/10
010
Medium · v2.0 (NVD)
EPSS score
1.33%
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. 14-06-2013
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

The Web Navigator in Siemens WinCC before 7.2 Update 1, as used in SIMATIC PCS7 8.0 SP1 and earlier and other products, exhibits different behavior for NetBIOS user names depending on whether the user account exists, which allows remote authenticated users to enumerate account names via crafted URL parameters.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.33%

Chance of exploitation in the next 30 days

Percentile

71%

Versus all other CVEs

30-day change

0.00 pp

From 1.33% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.33%

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

Siemens2 products
  • simatic_pcs7≤ 8.0 | 8.0
  • wincc≤ 7.2 | 7.0 | 7.0:sp1 | 7.0:sp2 | 7.0:sp3 | 7.1 | 7.1:sp1

1 vendor · 2 products

References

1 links