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TI-2012-05171 Aliases CVE-2012-6399GHSA-h5x3-v9f7-g9fh

Cisco WebEx 4.1 on iOS does not verify that the server hostname matches a domain name in…

Priority LOW 27CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
—
Confidentiality · integrity · availability
Partial · Partial · None
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

Cisco WebEx 4.1 on iOS does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, aka Bug ID CSCud94176.

Why it matters now

EPSS 0.00527 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:webex:4.1:-:*:*:*:iphone_os:*:*4.1VulnerableCisco
  • cpe:2.3:a:cisco:webex:4.1:-:*:*:*:iphone_os:*:* Versions 4.1 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2012-6399
  2. 2026-10-03 Alias added: GHSA-h5x3-v9f7-g9fh

References

—

  • TI-2017-02920 Memory corruption in Cisco WebEx browser extensions CVSS 3.0HIGH 8.8
  • TI-2009-02743 Buffer overflow in atrpui.dll in the Cisco WebEx WRF Player 26.x before 26.49.32 for… CVSS 2.0HIGH 9.3
  • TI-2009-02742 Heap-based buffer overflow in atas32.dll in the Cisco WebEx WRF Player 26.x before… CVSS 2.0HIGH 9.3
  • TI-2009-02741 Heap-based buffer overflow in atas32.dll in the Cisco WebEx WRF Player 26.x before… CVSS 2.0HIGH 9.3
  • TI-2009-02740 Stack-based buffer overflow in ataudio.dll in the Cisco WebEx WRF Player 26.x before… CVSS 2.0HIGH 9.3
  • TI-2009-02739 Heap-based buffer overflow in atas32.dll in the Cisco WebEx WRF Player 26.x before… CVSS 2.0HIGH 9.3
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences