THREATPORT/VULNERABILITY/CVE-2011-0465
HIGH SEVERITY

CVE-2011-0465

Xrdb vulnerability

CVSS
9.3
EPSS
5.8%
EPSS pct
92th
Exploited
No known
xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a (1) DHCP or (2) XDMCP message.
Affected vendor
Matthias Hopf
Affected product
Xrdb
CVSS vector
AV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2011-04-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to complete impact to confidentiality, complete impact to integrity, complete impact to availability.

Its EPSS score of 5.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2011-0465

  • Confirm whether Matthias Hopf Xrdb is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2011-0465.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2011-0465

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2011-0465 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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