CVE-2000-0453 json
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 por…
published 2000-05-18 26 y ago modified 2026-06-16 4 mo ago also EUVD-2000-0452
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.0%
- EPSS 3.0% chance of exploitation in 30 days, percentile 87%
- public exploits
- 1
- Exploit-DB
Summary
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.
Timeline
- First public exploit (EDB-19950)
- Published
Exploit prediction
2.96% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-19950 XFree86 X11R6 3.3.5/3.3.6/4.0 Xserver - Denial of Service dos, 2000-05-18
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
References
-
archives.neohapsis.com
/archives/bugtraq/2000-05/0223.html
mailing-list
-
securityfocus.com
/bid/1235
vdb-entry
Sources
- CVE List CVE-2000-0453
- NVD CVE-2000-0453
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.