CVE-2002-0988

Buffer overflow in X server (Xsco) in OpenUNIX 8.0.0 and UnixWare 7.1.1, possibly related to XBM/xkbcomp capabilities.

Published: 2002-09-24 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2002-0988 is rated High Risk (67/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.00%). High exploitation likelihood—assess exposure and prioritize 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-2002-0988

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 2025-08-05 0.60% 1.00% +0.40%
2 2025-03-30 1.60% 0.60% -1.00%
3 2025-03-29 — 1.60% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2002-0988

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
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.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2002-0988

Affected software / configurations for CVE-2002-0988

Vendor Product Version Raw CPE
caldera unixware 7.1.1 cpe:2.3:a:caldera:unixware:7.1.1:*:*:*:*:*:*:*
caldera openunix 8.0 cpe:2.3:o:caldera:openunix:8.0:*:*:*:*:*:*:*

References for CVE-2002-0988

cvelogic Threat Intelligence