Is CVE-2011-3287 being actively exploited?

CVE-2011-3287 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2011-3287?

CVE-2011-3287 has a CVSS 2.0 base score of 7.8 (HIGH).

CVE-2011-3287

HIGH · CVSS 7.8EPSS 1.2%EU EUVD

Cisco Jabber Extensible Communications Platform (aka Jabber XCP) 2.x through 5.4.x before 5.4.0.27581 and 5.8.x before 5.8.1.27561 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 ID CSCtq78106, a similar issue to CVE-2003-1564.

Key facts

CVSS score: 7.8 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness (CWE): CWE-399
EPSS score: 1.2% (68th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2011-3251)
Published: October 6, 2011
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2011-3251 in the EU Vulnerability Database. Last updated in EUVD on September 17, 2024.

View on the EU Vulnerability Database

Affected products

cisco / jabber extensible communications platform
cisco / jabber extensible communications platform
cisco / jabber extensible communications platform
cisco / jabber extensible communications platform

References

http://www.cisco.com/en/US/products/products_security_advisory09186a0080b95d47.shtml(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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