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CVE-1999-0038

32
FAUCET Score

CVE-1999-0038 is a buffer overflow vulnerability affecting the xlock utility on legacy Unix-based operating systems, including Solaris, HP-UX, and AIX. Rated as high severity with a CVSS score of 8.4, this flaw permits a local attacker to execute arbitrary commands with root privileges, resulting in a complete compromise of system confidentiality, integrity, and availability. While historical proof-of-concept code is available in public repositories, the vulnerability is currently considered inactive with a low EPSS score and no recent evidence of exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:data_general:dg_ux:1.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:data_general:dg_ux:2.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:data_general:dg_ux:3.0:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:data_general:dg_ux:4.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:a:data_general:dg_ux:5.0:*:*:*:*:*:*:*

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
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
67.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-19172 · Apr 26, 1997
This CVE's current EPSS score of 0.0132 is in the 85th percentile among its peer group of 3,237 CVEs.

Social Chatter

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-1999-0038