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Vulnerability record · public intelligence
CVE-2011-1757
UNKNOWN

CVE-2011-1757

Published Jun 21, 2011 · Updated Oct 23, 2026

Severity · CVSSUNKNOWN · 5.0
Known exploitationNot listed
EPSS / likelihood1.12%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Oct 23, 2026

DJabberd 0.84 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.

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

DJabberd 0.84 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.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

CVENVDEPSS
SSVC priority
LOW
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. [djabberd] 20110604 CVE-2011-1757: djabberd billion laughs vulnerability ↗

Record history

Published Jun 21, 2011 · Last refreshed Oct 23, 2026