CVE-1999-0421 json
During a reboot after an installation of Linux Slackware 3.6, a remote attacker can obtain root access by logging in to the root account wi…
published 1999-03-17 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-0421
- cvss
- 7.2
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
During a reboot after an installation of Linux Slackware 3.6, a remote attacker can obtain root access by logging in to the root account without a password.
Patch / fix
- securityfocus.com/bid/338 advisory
Exploit prediction
1.57% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- securityfocus.com http://www.securityfocus.com/bid/338 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
References
-
securityfocus.com
/bid/338
vdb-entry, exploit, patch, vendor-advisory
-
osvdb.org
/981
vdb-entry
Sources
- CVE List CVE-1999-0421
- NVD CVE-1999-0421
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.