CVE-1999-0022

Local user gains root privileges via buffer overflow in rdist, via expstr() function.

Published: 1996-07-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0022 is rated Moderate Risk (44.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.49%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-1999-0022

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 0.25% 0.49% +0.24%
2 2026-06-10 0.19% 0.25% +0.06%
3 2026-04-02 — 0.19% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0022

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.9 10.0 [email protected]

Weakness enumeration for CVE-1999-0022

OS Trackers for CVE-1999-0022

vendor priority summary link
alpine — CVE-1999-0022: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0022

Affected software / configurations for CVE-1999-0022

Vendor Product Version Raw CPE
sgi irix 5.0 cpe:2.3:o:sgi:irix:5.0:*:*:*:*:*:*:*
sgi irix 5.0.1 cpe:2.3:o:sgi:irix:5.0.1:*:*:*:*:*:*:*
sgi irix 5.1 cpe:2.3:o:sgi:irix:5.1:*:*:*:*:*:*:*
sgi irix 5.1.1 cpe:2.3:o:sgi:irix:5.1.1:*:*:*:*:*:*:*
sgi irix 5.2 cpe:2.3:o:sgi:irix:5.2:*:*:*:*:*:*:*
sgi irix 5.3 cpe:2.3:o:sgi:irix:5.3:*:*:*:*:*:*:*
sgi irix 5.3 cpe:2.3:o:sgi:irix:5.3:*:xfs:*:*:*:*:*
sgi irix 6.0 cpe:2.3:o:sgi:irix:6.0:*:*:*:*:*:*:*
sgi irix 6.0.1 cpe:2.3:o:sgi:irix:6.0.1:*:*:*:*:*:*:*
sgi irix 6.0.1 cpe:2.3:o:sgi:irix:6.0.1:*:xfs:*:*:*:*:*
sgi irix 6.1 cpe:2.3:o:sgi:irix:6.1:*:*:*:*:*:*:*
sgi irix 6.2 cpe:2.3:o:sgi:irix:6.2:*:*:*:*:*:*:*
sgi irix 6.3 cpe:2.3:o:sgi:irix:6.3:*:*:*:*:*:*:*
sgi irix 6.4 cpe:2.3:o:sgi:irix:6.4:*:*:*:*:*:*:*
bsdi bsd_os 1.1 cpe:2.3:o:bsdi:bsd_os:1.1:*:*:*:*:*:*:*
freebsd freebsd 2.0 cpe:2.3:o:freebsd:freebsd:2.0:*:*:*:*:*:*:*
freebsd freebsd 2.0.5 cpe:2.3:o:freebsd:freebsd:2.0.5:*:*:*:*:*:*:*
freebsd freebsd 2.1.0 cpe:2.3:o:freebsd:freebsd:2.1.0:*:*:*:*:*:*:*
hp hp-ux 10.00 cpe:2.3:o:hp:hp-ux:10.00:*:*:*:*:*:*:*
ibm aix 3.1 cpe:2.3:o:ibm:aix:3.1:*:*:*:*:*:*:*
ibm aix 3.2 cpe:2.3:o:ibm:aix:3.2:*:*:*:*:*:*:*
ibm aix 3.2.4 cpe:2.3:o:ibm:aix:3.2.4:*:*:*:*:*:*:*
ibm aix 3.2.5 cpe:2.3:o:ibm:aix:3.2.5:*:*:*:*:*:*:*
ibm aix 4.1 cpe:2.3:o:ibm:aix:4.1:*:*:*:*:*:*:*
ibm aix 4.1.1 cpe:2.3:o:ibm:aix:4.1.1:*:*:*:*:*:*:*
ibm aix 4.1.2 cpe:2.3:o:ibm:aix:4.1.2:*:*:*:*:*:*:*
ibm aix 4.1.3 cpe:2.3:o:ibm:aix:4.1.3:*:*:*:*:*:*:*
ibm aix 4.1.4 cpe:2.3:o:ibm:aix:4.1.4:*:*:*:*:*:*:*
ibm aix 4.1.5 cpe:2.3:o:ibm:aix:4.1.5:*:*:*:*:*:*:*
ibm aix 4.2 cpe:2.3:o:ibm:aix:4.2:*:*:*:*:*:*:*
sun solaris 4.1.3 cpe:2.3:o:sun:solaris:4.1.3:*:*:*:*:*:*:*
sun sunos 4.1.1 cpe:2.3:o:sun:sunos:4.1.1:*:*:*:*:*:*:*
sun sunos 4.1.2 cpe:2.3:o:sun:sunos:4.1.2:*:*:*:*:*:*:*
sun sunos 4.1.3u1 cpe:2.3:o:sun:sunos:4.1.3u1:*:*:*:*:*:*:*
sun sunos 5.0 cpe:2.3:o:sun:sunos:5.0:*:*:*:*:*:*:*
sun sunos 5.1 cpe:2.3:o:sun:sunos:5.1:*:*:*:*:*:*:*
sun sunos 5.2 cpe:2.3:o:sun:sunos:5.2:*:*:*:*:*:*:*
sun sunos 5.3 cpe:2.3:o:sun:sunos:5.3:*:*:*:*:*:*:*
sun sunos 5.4 cpe:2.3:o:sun:sunos:5.4:*:*:*:*:*:*:*

References for CVE-1999-0022

cvelogic Threat Intelligence