CVE-2011-3288

high

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.

References

https://www.cisco.com/c/en/us/support/docs/csa/cisco-sa-20110928-xcpcupsxml.html

http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d47.shtml

Details

Source: Mitre, NVD

Published: 2011-10-06

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.00527