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CVE-2011-3288

7.5 · HIGH

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…

Published Oct 6, 2011ciscoCWE-776EPSS 1.77%

Overview

CVE-2011-3288 is a high-severity vulnerability affecting cisco unified_presence. It was published on October 6, 2011 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from cisco. Update unified_presence to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
ciscounified_presence>= 0, < 8.5\(4\)Affected

References

Refwww.cisco.com/en/US/products/products_security_advisory09186a0080b95d47.shtmlRefwww.cisco.com/c/en/us/support/docs/csa/cisco-sa-20110928-xcpcupsxml.htmlRefwww.cisco.com/en/US/products/products_security_advisory09186a0080b95d47.shtml

How CyberStrike helps

Frequently asked questions

What is CVE-2011-3288?

CVE-2011-3288 is a high-severity vulnerability affecting cisco unified_presence. It was published on October 6, 2011 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2011-3288?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2011-3288?

Check the references section for vendor advisories and patches from cisco. Update unified_presence to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2011-3288?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2011-3288 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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