CVE-2009-2874

Unified Presence Server vulnerability

CVSS

7.8

EPSS

3.8%

EPSS pct

89th

Exploited

No known

The TimesTenD process in Cisco Unified Presence 1.x, 6.x before 6.0(6), and 7.x before 7.0(4) allows remote attackers to cause a denial of service (process crash) via a large number of TCP connections to ports 16200 and 22794, aka Bug ID CSCsy17662.

Affected vendor

Cisco

Affected product

Unified Presence Server

CVSS vector

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

Published

2009-10-16

Risk analysis

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

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2009-2874

Confirm whether Cisco Unified Presence Server is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2009-2874.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2009-2874

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2009-2874 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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