CVE-2008-5179

Office Communications Server vulnerability

CVSS

5.0

EPSS

16.4%

EPSS pct

97th

Exploited

No known

Unspecified vulnerability in Microsoft Office Communications Server (OCS), Office Communicator, and Windows Live Messenger allows remote attackers to cause a denial of service (crash) via a crafted Real-time Transport Control Protocol (RTCP) receiver report packet.

Affected vendor

Microsoft

Affected product

Office Communications Server

CVSS vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Published

2008-11-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to availability.

Its EPSS score of 16.4% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2008-5179

Confirm whether Microsoft Office Communications Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2008-5179.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2008-5179

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2008-5179 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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