THREATPORT/VULNERABILITY/CVE-2000-0491
HIGH SEVERITY

CVE-2000-0491

Gdm vulnerability

CVSS
10.0
EPSS
17.8%
EPSS pct
97th
Exploited
No known
Buffer overflow in the XDMCP parsing code of GNOME gdm, KDE kdm, and wdm allows remote attackers to execute arbitrary commands or cause a denial of service via a long FORWARD_QUERY request.
Affected vendor
Gnome
Affected product
Gdm
CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
Published
2000-05-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low 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 17.8% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2000-0491

  • Confirm whether Gnome Gdm is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2000-0491.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2000-0491

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2000-0491 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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