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CVE-1999-0138

19
FAUCET Score

CVE-1999-0138 describes a privilege escalation vulnerability in the suidperl and sperl programs, affecting various operating systems including Apple, Digital, FreeBSD, HP, IBM, Linux, and NEC. The flaw allows root access because the programs fail to properly relinquish root privileges after changing UIDs back to the original user. This is a high-severity vulnerability with a CVSS score of 7.2, indicating local access, low attack complexity, and complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code in Metasploit or ExploitDB, nor significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.1.1CPE matchmatch criteria
cpe:2.3:o:apple:a_ux:3.1.1:*:*:*:*:*:*:*
1.3CPE matchmatch criteria
cpe:2.3:o:digital:osf_1:1.3:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:2.0:*:*:*:*:*:*:*
2.0.5CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:2.0.5:*:*:*:*:*:*:*
2.1.0CPE matchmatch criteria
cpe:2.3:o:freebsd:freebsd:2.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

AV:L/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 70th percentile among its peer group of 3,236 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

exchange.xforce.ibmcloud.com / vulnerabilities/CVE-1999-0138