CVE-2013-3959: n/a vulnerability

CVE-2013-3959: The Web Navigator in Siemens WinCC before 7.2 Update 1, as used in SIMATIC PCS7 8.0 SP1 and earlier and oth...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 20:42 UTC (UTC+00:00)

Security readout for executives and security teams

This flaw lets a logged-in remote user tell whether certain Windows/NetBIOS account names exist in Siemens WinCC Web Navigator. It is not described as unauthenticated takeover, but account enumeration can support later targeting in industrial environments. Exposure is most likely where Siemens WinCC Web Navigator is deployed, including environments using SIMATIC PCS7 8.0 SP1 or earlier. The bundle does not provide a complete affected product matrix. Treat this as a moderate industrial-control exposure. It can reveal valid account names to authenticated users, increasing follow-on attack risk, especially on older OT platforms that are hard to patch. Mitigation focus: Identify WinCC Web Navigator deployments and versions.; Prioritize upgrade to WinCC 7.2 Update 1 or a Siemens-supported fixed release.; Review Siemens advisory SSA-345843 for product-specific remediation guidance..

Prepared: Jun 14, 2026, 22:07 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 14, 2013, 19:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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