CVE-1999-0778

Exp

Buffer overflow in Xi Graphics Accelerated-X server allows local users to gain root access via a long display or query parameter.

Published: 1999-06-25 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0778 is rated High Exploit Risk (66.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.45%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-1999-0778

EDB-ID Source Kind Published Link
19370 exploit_db edb 1999-06-25 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-0778

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 2025-12-18 0.14% 0.45% +0.31%
2 2025-03-17 0.04% 0.14% +0.10%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0778

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-1999-0778

Affected software / configurations for CVE-1999-0778

Vendor Product Version Raw CPE
xi_graphics accelerated-x_server 4 cpe:2.3:a:xi_graphics:accelerated-x_server:4:*:*:*:*:*:*:*
xi_graphics accelerated-x_server 5 cpe:2.3:a:xi_graphics:accelerated-x_server:5:*:*:*:*:*:*:*

References for CVE-1999-0778

cvelogic Threat Intelligence