CVE-2010-2840

Severity: high (CVSS 7.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2010-08-26 · updated 2026-06-16
Weakness: CWE-20

Description

The Presence Engine (PE) service in Cisco Unified Presence 6.x before 6.0(7) and 7.x before 7.0(8) does not properly handle an erroneous Contact field in the header of a SIP SUBSCRIBE message, which allows remote attackers to cause a denial of service (process failure) via a malformed message, aka Bug ID CSCtd39629.

Affected products

Cisco Unified Presence Server: 6.0, 6.0(2), 6.0(3), 6.0(4), 6.0(5), 6.0(6) (+16)

References

http://www.cisco.com/en/US/products/products_security_advisory09186a0080b43909.shtml
http://www.vupen.com/english/advisories/2010/2186
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b43909.shtml
http://www.vupen.com/english/advisories/2010/2186

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