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CVE-2003-0549

19
FAUCET Score

CVE-2003-0549 describes a denial-of-service vulnerability in GDM versions prior to 2.4.1.6, impacting various Linux distributions including Red Hat Enterprise Linux. Attackers can crash the GDM daemon by providing a short authorization key name through the X Display Manager Control Protocol (XDMCP). With a CVSS score of 5.0, this vulnerability is easily exploitable over the network with low attack complexity, leading to a partial availability impact. There is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit or ExploitDB, though it has garnered some community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2.2.0CPE matchmatch criteria
cpe:2.3:a:gnome:gdm:2.2.0:*:*:*:*:*:*:*
2.4.1CPE matchmatch criteria
cpe:2.3:a:gnome:gdm:2.4.1:*:*:*:*:*:*:*
2.4.1.1CPE matchmatch criteria
cpe:2.3:a:gnome:gdm:2.4.1.1:*:*:*:*:*:*:*
2.4.1.2CPE matchmatch criteria
cpe:2.3:a:gnome:gdm:2.4.1.2:*:*:*:*:*:*:*
2.4.1.3CPE matchmatch criteria
cpe:2.3:a:gnome:gdm:2.4.1.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.47%
Probability of exploitation in next 30 days
EPSS Percentile
71.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0147 is in the 53rd percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 8.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2003-0549Low

security flaw

Aug 20, 2003

References

distro.conectiva.com.br / atualizacoes
mail.gnome.org / archives/gnome-hackers/2003-August/msg00045.html
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A129
redhat.com / support/errata/RHSA-2003-258.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-259.html
PatchVendor Advisory