Vulnerability Details : CVE-2011-1756

modules/xmpp/serv_xmpp.c in Citadel 7.86 and earlier does not properly detect recursion during entity expansion, which allows remote attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, a similar issue to CVE-2003-1564.
Published 2011-06-21 02:52:44
Updated 2025-04-11 00:51:22
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2011-1756

Threat overview for CVE-2011-1756

Top countries where our scanners detected CVE-2011-1756
Top open port discovered on systems with this issue 2020
IPs affected by CVE-2011-1756 45
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-1756!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2011-1756

EPSS FAQ
1.46%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-1756

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
 NIST

CWE ids for CVE-2011-1756

  • Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-1756

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