CVE-1999-0433

Exp

XFree86 startx command is vulnerable to a symlink attack, allowing local users to create files in restricted directories, possibly allowing them to gain privileges or cause a denial of service.

Published: 1999-03-21 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0433 is rated Exploit Available (51/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.71%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-0433

EDB-ID Source Kind Published Link
19257 exploit_db edb 1999-03-21 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0433

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 0.71% +0.54%
2 2025-03-17 0.04% 0.17% +0.13%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0433

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-1999-0433

OS Trackers for CVE-1999-0433

vendor priority summary link
alpine — CVE-1999-0433: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0433

Affected software / configurations for CVE-1999-0433

Vendor Product Version Raw CPE
xfree86_project x11r6 3.3.3 cpe:2.3:a:xfree86_project:x11r6:3.3.3:*:*:*:*:*:*:*
netbsd netbsd 1.3.2 cpe:2.3:o:netbsd:netbsd:1.3.2:*:*:*:*:*:*:*
netbsd netbsd 1.3.3 cpe:2.3:o:netbsd:netbsd:1.3.3:*:*:*:*:*:*:*
redhat linux 5.1 cpe:2.3:o:redhat:linux:5.1:*:*:*:*:*:*:*
redhat linux 5.2 cpe:2.3:o:redhat:linux:5.2:*:i386:*:*:*:*:*
slackware slackware_linux 3.3 cpe:2.3:o:slackware:slackware_linux:3.3:*:*:*:*:*:*:*
slackware slackware_linux 3.4 cpe:2.3:o:slackware:slackware_linux:3.4:*:*:*:*:*:*:*
slackware slackware_linux 3.5 cpe:2.3:o:slackware:slackware_linux:3.5:*:*:*:*:*:*:*
slackware slackware_linux 3.6 cpe:2.3:o:slackware:slackware_linux:3.6:*:*:*:*:*:*:*
slackware slackware_linux 4.0 cpe:2.3:o:slackware:slackware_linux:4.0:*:*:*:*:*:*:*
suse suse_linux 5.1 cpe:2.3:o:suse:suse_linux:5.1:*:*:*:*:*:*:*
suse suse_linux 5.2 cpe:2.3:o:suse:suse_linux:5.2:*:*:*:*:*:*:*
suse suse_linux 6.0 cpe:2.3:o:suse:suse_linux:6.0:*:*:*:*:*:*:*
suse suse_linux 6.1 cpe:2.3:o:suse:suse_linux:6.1:*:*:*:*:*:*:*

References for CVE-1999-0433

cvelogic Threat Intelligence