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CVE-2017-3813

HIGH · CVSS 7.8EPSS 1.7%EU EUVD

A vulnerability in the Start Before Logon (SBL) module of Cisco AnyConnect Secure Mobility Client Software for Windows could allow an unauthenticated, local attacker to open Internet Explorer with the privileges of the SYSTEM user. The vulnerability is due to insufficient implementation of the access controls. An attacker could exploit this vulnerability by opening the Internet Explorer browser. An exploit could allow the attacker to use Internet Explorer with the privileges of the SYSTEM user. This may allow the attacker to execute privileged commands on the targeted system. This vulnerability affects versions prior to released versions 4.4.00243 and later and 4.3.05017 and later. Cisco Bug IDs: CSCvc43976.

Key facts

CVSS score
7.8 (v3.0)
Severity
HIGH
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-264
EPSS score
1.7% (77th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2017-12930)
Published
February 9, 2017
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-12930 in the EU Vulnerability Database. Last updated in EUVD on August 5, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client
  • cisco / anyconnect secure mobility client

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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