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Vulnerability record · CVE-2000-0491 · published 24 May 2000

CVE-2000-0491: Gnome gdm vulnerability

Gnome · Gdm

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.

10.0 CVSS 2.0 High EPSS 18% · top 2.9%
10.0CVSS 2.0 base score
18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

Description

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.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://ftp.calderasystems.com/pub/OpenLinux/security/CSSA-2000-013.0.txt PatchVendor Advisory
http://archives.neohapsis.com/archives/bugtraq/2000-05/0241.html
http://archives.neohapsis.com/archives/bugtraq/2000-06/0025.html
http://www.novell.com/linux/security/advisories/suse_security_announce_49.html
http://www.securityfocus.com/bid/1233
http://www.securityfocus.com/bid/1279
http://www.securityfocus.com/bid/1370
ftp://ftp.calderasystems.com/pub/OpenLinux/security/CSSA-2000-013.0.txt PatchVendor Advisory
http://archives.neohapsis.com/archives/bugtraq/2000-05/0241.html
http://archives.neohapsis.com/archives/bugtraq/2000-06/0025.html
http://www.novell.com/linux/security/advisories/suse_security_announce_49.html
http://www.securityfocus.com/bid/1233
http://www.securityfocus.com/bid/1279
http://www.securityfocus.com/bid/1370

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2000-0491), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.