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TI-2008-04931 Aliases CVE-2008-5180GHSA-3j45-2pqx-6qf3

Microsoft Communicator, and Communicator in Microsoft Office 2010 beta, allows remote…

Priority HIGH 67CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-770.

Summary

Microsoft Communicator, and Communicator in Microsoft Office 2010 beta, allows remote attackers to cause a denial of service (memory consumption) via a large number of SIP INVITE requests, which trigger the creation of many sessions.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.67977 99th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

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:microsoft:office_communicator:*:*:*:*:*:*:*:*all versionsVulnerableMicrosoft
  • cpe:2.3:a:microsoft:office_communicator:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2008-5180
  2. 2026-10-03 Alias added: GHSA-3j45-2pqx-6qf3

References

Exploit 2

Other 1

  • TI-2013-01140 Microsoft Communicator 2007 R2, Lync 2010, Lync 2010 Attendee, and Lync Server 2013 do… CVSS 2.0HIGH 9.3
  • TI-2008-02936 Microsoft Crypto API 5.131.2600.2180 through 6.0, as used in Outlook, Windows Live Mail… CVSS 2.0HIGH 7.5
  • TI-2012-02194 Cross-site scripting (XSS) vulnerability in Microsoft InfoPath 2007 SP2 and SP3 and 2010… CVSS 2.0MEDIUM 4.3
  • TI-2012-01642 The toStaticHTML API (aka the SafeHTML component) in Microsoft Internet Explorer 8 and 9… CVSS 2.0MEDIUM 4.3
  • TI-2008-04930 Unspecified vulnerability in Microsoft Office Communications Server (OCS), Office… CVSS 2.0MEDIUM 5.0
  • TI-2008-04932 Microsoft Communicator allows remote attackers to cause a denial of service (application… CVSS 2.0MEDIUM 5.0

Sources

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