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CVE-2011-3288

HIGH
7.5
CVSS Score
Published: October 6, 2011 at 10:00 AM UTC
Updated: June 16, 2026 at 11:33 PM UTC
1 product affected across 1 vendorUnified Presence

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

Cisco Unified Presence before 8.5(4) does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption, and process crash) via a crafted XML document containing a large number of nested entity references, aka Bug IDs CSCtq89842 and CSCtq88547, a similar issue to CVE-2003-1564.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Unified Presence· Cisco
95%
v < 8.5(4)
Affected range stops below 8.5(4), so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Vendor Advisoryx_refsource_CISCONot Applicable
Source: [email protected]
http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d47.shtml
Vendor Advisory
Source: [email protected]
https://www.cisco.com/c/en/us/support/docs/csa/cisco-sa-20110928-xcpcupsxml.html

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-776

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