CVE-2010-2840

highpriority · track · 31EPSS 0.012 · 68 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.21% (68th) EPSS

CVSS 7.8 · high

Is it mine?

23 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v2.06.6mediumAV:N/AC:L/Au:N/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

affected products (23)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco unified presence server= 6.0nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(2)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(2.1101)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(3)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(3.1101-2)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(4)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(4.1101-5)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(5)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(5.1101-1)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(5.1103-2)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0(6)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 6.0.5.1102-1nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 7.0nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 7.0(2)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 7.0(3)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 7.0(4)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 7.0(5)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 7.0(6)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*
cisco unified presence server= 7.0(7)nvdUScpe:2.3:a:cisco:unified_presence_server:*:*:*:*:*:*:*:*

showing 20 of 23

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2010-08-26modified 2026-06-16

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+25197 more

references (4)

External citations — patches, advisories, analysis.

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