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CVE-2013-3959

Published: Jun 14, 2013Updated: Apr 29, 2026 Sources: CVE List NVD BDU csafCWE-200
NVD MITRE
4.0CVSSMEDIUM
EPSS Score
1.3%
Top 32.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LAu:SC:PI:NA:N
Exploitability
AV:NAccess Vector
Network
AC:LAccess Complexity
Low
Au:SAuthentication
Single
Impact
C:PConfidentiality
Partial
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-200

Affected Products

Simatic Process Control System 7Siemens AGICS / OT / IoT
n/an/a
simatic pcs7siemensICS / OT / IoT
winccsiemensICS / OT / IoT
siemens agcommercialDEEnterprise Softwareaka siemens
siemenscommercialDEEnterprise Softwareaka siemens ag

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-3959
cve.mitre.org
http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-345843.pdf
siemens.com
http://www.securitylab.ru/lab/PT-2013-44
securitylab.ru
and 11 more references View all →

Timeline

Published
Jun 14, 2013
Last Updated
Apr 29, 2026

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