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CVE-1999-1304

18
FAUCET Score

CVE-1999-1304 describes a critical vulnerability in the login utility of SCO UNIX 4.2 and earlier versions, including SCO OpenServer and Open Desktop products. This flaw allows local users to escalate privileges and gain root access to the affected system. With a CVSS score of 7.2 (High), it presents a significant risk due to its low attack complexity and complete compromise of confidentiality, integrity, and availability. Despite its age and high severity, there is no known exploit intelligence, active exploitation, or community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.0CPE matchmatch criteria
cpe:2.3:o:sco:open_desktop:2.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:sco:open_desktop:3.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:sco:open_desktop_lite:3.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:sco:openserver_enterprise_system:3.0:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:sco:openserver_network_system:3.0:*:*:*:*:*:*:*

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
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
28.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 30th percentile among its peer group of 3,237 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

ciac.llnl.gov / ciac/bulletins/f-05.shtml