CVE-1999-1431

Exp

ZAK in Appstation mode allows users to bypass the "Run only allowed apps" policy by starting Explorer from Office 97 applications (such as Word), installing software into the TEMP directory, and changing the name to that for an allowed application, such as Winword.exe.

Published: 2005-01-07 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-1999-1431 is rated Exploit Available (59/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.90%). 2 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-1999-1431

EDB-ID Source Kind Published Link
19144 exploit_db edb 1999-01-07 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-1999-1431

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 2026-03-13 1.71% 0.90% -0.81%
2 2026-01-02 2.31% 1.71% -0.60%
3 2025-07-01 — 2.31% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-1999-1431

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P 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:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-1999-1431

Affected software / configurations for CVE-1999-1431

Vendor Product Version Raw CPE
microsoft zero_administration_kit 1.0 cpe:2.3:a:microsoft:zero_administration_kit:1.0:*:*:*:*:*:*:*

References for CVE-1999-1431

cvelogic Threat Intelligence