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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…

Medium5.0EPSS 2.7%
Published
Updated
Reserved
Assigned by
redhat

Description

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.

Scores

CVSS scores of CVE-2011-1756, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0Medium5.0AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS (exploitation in 30 days)
2.7% · top 14% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

Affected products

  • n/a

    • affected n/a

References (8)

Sources

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Record last updated .