CVE-1999-0956

The NeXT NetInfo _writers property allows local users to gain root privileges or conduct a denial of service.

Published: 1997-09-19 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-0956 is rated Low Risk (34.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.06%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-1999-0956

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 2025-03-17 0.04% 0.06% +0.02%
2 2023-03-07 0.89% 0.04% -0.84%
3 2022-02-04 — 0.89% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-0956

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-1999-0956

Affected software / configurations for CVE-1999-0956

Vendor Product Version Raw CPE
next nextstep 1.0 cpe:2.3:o:next:nextstep:1.0:*:*:*:*:*:*:*
next nextstep 1.0a cpe:2.3:o:next:nextstep:1.0a:*:*:*:*:*:*:*
next nextstep 2.0 cpe:2.3:o:next:nextstep:2.0:*:*:*:*:*:*:*
next nextstep 2.1 cpe:2.3:o:next:nextstep:2.1:*:*:*:*:*:*:*
next nextstep 3.0 cpe:2.3:o:next:nextstep:3.0:*:*:*:*:*:*:*

References for CVE-1999-0956

cvelogic Threat Intelligence