CVE-1999-0138

The suidperl and sperl program do not give up root privileges when changing UIDs back to the original users, allowing root access.

Published: 1996-06-26 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0138 is rated Moderate Risk (52.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.50%). 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-1999-0138

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 2026-06-10 0.30% 0.50% +0.20%
2 2026-05-12 0.07% 0.30% +0.23%
3 2025-03-17 — 0.07% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0138

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
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-1999-0138

OS Trackers for CVE-1999-0138

vendor priority summary link
alpine — CVE-1999-0138: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-1999-0138

Affected software / configurations for CVE-1999-0138

Vendor Product Version Raw CPE
apple a_ux 3.1.1 cpe:2.3:o:apple:a_ux:3.1.1:*:*:*:*:*:*:*
digital osf_1 1.3 cpe:2.3:o:digital:osf_1:1.3:*:*:*:*:*:*:*
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 8 cpe:2.3:o:hp:hp-ux:8:*:*:*:*:*:*:*
hp hp-ux 9 cpe:2.3:o:hp:hp-ux:9:*:*:*:*:*:*:*
hp hp-ux 10 cpe:2.3:o:hp:hp-ux:10:*:*:*:*:*:*:*
ibm aix 3.2.5 cpe:2.3:o:ibm:aix:3.2.5:*:*:*:*:*:*:*
ibm aix 4 cpe:2.3:o:ibm:aix:4:*:*:*:*:*:*:*
linux linux_kernel 1.2.0 cpe:2.3:o:linux:linux_kernel:1.2.0:*:*:*:*:*:*:*
linux linux_kernel 2.0 cpe:2.3:o:linux:linux_kernel:2.0:*:*:*:*:*:*:*
nec asl_ux_4800 — cpe:2.3:o:nec:asl_ux_4800:*:*:*:*:*:*:*:*
nec ews-ux_v 4.2 cpe:2.3:o:nec:ews-ux_v:4.2:*:*:*:*:*:*:*
nec ews-ux_v 4.2mp cpe:2.3:o:nec:ews-ux_v:4.2mp:*:*:*:*:*:*:*
nec up-ux_v 4.2mp cpe:2.3:o:nec:up-ux_v:4.2mp:*:*:*:*:*:*:*

References for CVE-1999-0138

cvelogic Threat Intelligence