No exploitation reported

CVE-1999-0012

No exploitation reported by the sources we read.

Published1998-02-06
WeaknessCWE-290

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Some web servers under Microsoft Windows allow remote attackers to bypass access restrictions for files with long file names.

Timeline

dates in UTC

1998-02-0605:00CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-1999-0012?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-1999-0012?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Netscape fasttrack server

Branch	Affected	Fixed in	Source
2.1	= 2.01	no fix published	NVD
3.1	= 3.01	no fix published	NVD

Microsoft frontpage

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Microsoft internet information server

Branch	Affected	Fixed in	Source
4.0	= 4.0	no fix published	NVD

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-07
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.172025-04-09
NVDCVSS 2.05read 2026-10-23
CISA-ADPweakness (CWE)CWE-2902025-04-09
FIRST EPSSEPSS score18.5 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
Published: 1998-02-06
Last Modified: 2026-06-16
NVD status: Modified

Frequently asked questions

What is CVE-1999-0012?

Some web servers under Microsoft Windows allow remote attackers to bypass access restrictions for files with long file names.

Is CVE-1999-0012 actively exploited?

Active exploitation of CVE-1999-0012 has not been confirmed. Its EPSS score was 18.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-1999-0012?

CVE-1999-0012 has a CVSS v3 base score of 7 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L.

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