CVE-1999-0239

HIGHNVD 7.5Weaponized

7.5

Netscape FastTrack Web server lists files when a lowercase "get" command is used instead of an uppercase GET.

CVSS v3: 7.5
EG Score: —
EPSS: 88.1%
KEV: Not listed

Published

January 1, 1998

Last Modified

April 16, 2026

References (3)

cve@mitrehttp://www.osvdb.org/122
nvd@nisthttps://exchange.xforce.ibmcloud.com/vulnerabilities/1731
af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/122

Data Freshness Timeline

(refreshed 13× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-19363✓ verified
First seen Jun 7, 1999
Netscape FastTrack Server 3.0.1 - Fasttrack Root Directory Listing
Open source ↗

Frequently asked(5)

What is CVE-1999-0239?

CVE-1999-0239 is a high vulnerability published on January 1, 1998. Netscape FastTrack Web server lists files when a lowercase "get" command is used instead of an uppercase GET.

When was CVE-1999-0239 disclosed?

CVE-1999-0239 was first published in the National Vulnerability Database on January 1, 1998, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-1999-0239 actively exploited?

CVE-1999-0239 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 88.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-1999-0239?

CVE-1999-0239 has a CVSS v3 base score of 7.5 (NVD).

How do I remediate CVE-1999-0239?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-1999-0239, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-1999-0239

📅 Published

🔄 Last Modified

🔗 References (3)