THREATPORT/VULNERABILITY/CVE-2011-1755
HIGH SEVERITY

CVE-2011-1755

Jabberd2 vulnerability

CVSS
7.5
EPSS
3.7%
EPSS pct
88th
Exploited
No known
jabberd2 before 2.2.14 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.
Affected vendor
Jabberd2
Affected product
Jabberd2
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
Published
2011-06-21

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2011-1755

  • Confirm whether Jabberd2 Jabberd2 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-1755.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-1755

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-1755 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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