CVE-2000-0453 EXPLOIT
5.0
MEDIUM · CVSS 2.0 · EPSS 3% (pctl 87)
Patch early
A public exploit exists.
Description
XFree86 3.3.x and 4.0 allows a user to cause a denial of service via a negative counter value in a malformed TCP packet that is sent to port 6000.
Scoring
| CVSS | 5.0 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| EPSS | 2.96% — more likely to be exploited than 87% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2000-05-18 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| xfree86 project | x11r6 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | XFree86 X11R6 3.3.5/3.3.6/4.0 Xserver - Denial of Service | 2000-05-18 |
References
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt
- http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html
- http://www.securityfocus.com/bid/1235
- ftp://ftp.caldera.com/pub/security/OpenLinux/CSSA-2000-012.0.txt
- http://archives.neohapsis.com/archives/bugtraq/2000-05/0223.html
- http://www.securityfocus.com/bid/1235
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