CVE-2001-0333

NONECVSS 0.0Weaponized

0.0

Directory traversal vulnerability in IIS 5.0 and earlier allows remote attackers to execute arbitrary commands by encoding .. (dot dot) and "\" characters twice.

CVSS v3: —
EG Score: —
EPSS: 99.3%
KEV: Not listed

Published

June 27, 2001

Last Modified

April 16, 2026

References (18)

cve@mitrehttp://marc.info/?l=bugtraq&m=98992056521300&w=2
cve@mitrehttp://www.cert.org/advisories/CA-2001-12.html
cve@mitrehttp://www.securityfocus.com/bid/2708
cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-026
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/6534
cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1018
cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1051
cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A37
cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A78
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=98992056521300&w=2
af854a3a-2127-422b-91ae-364da2661108http://www.cert.org/advisories/CA-2001-12.html
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/2708
af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-026
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/6534
af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1018

Data Freshness Timeline

(refreshed 8× in last 7d / 10× 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.

2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(10 references)

Working exploit code is in the public domain (1 Metasploit module) (9 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-16467✓ verified
First seen Jan 8, 2011
Microsoft IIS/PWS - CGI Filename Double Decode Command Execution (MS01-026) (Metasploit)
Open source ↗
Exploit-DBEDB-20836✓ verified
First seen May 16, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (2)
Open source ↗
Exploit-DBEDB-20837✓ verified
First seen May 15, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (3)
Open source ↗
Exploit-DBEDB-20838✓ verified
First seen May 15, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (4)
Open source ↗
Exploit-DBEDB-20840✓ verified
First seen May 15, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (6)
Open source ↗
Exploit-DBEDB-20841✓ verified
First seen May 15, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (7)
Open source ↗
Exploit-DBEDB-20842✓ verified
First seen May 15, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (8)
Open source ↗
Exploit-DBEDB-20839✓ verified
First seen May 15, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (5)
Open source ↗
Exploit-DBEDB-20835✓ verified
First seen May 15, 2001
Microsoft IIS 3.0/4.0/5.0 - PWS Escaped Characters Decoding Command Execution (1)
Open source ↗
Metasploitexploit/windows/iis/ms01_026_dbldecode✓ verified
First seen May 15, 2001
MS01-026 Microsoft IIS/PWS CGI Filename Double Decode Command Execution
Open source ↗

Frequently asked(4)

What is CVE-2001-0333?

CVE-2001-0333 is a none vulnerability published on June 27, 2001. Directory traversal vulnerability in IIS 5.0 and earlier allows remote attackers to execute arbitrary commands by encoding .. (dot dot) and "\" characters twice.

When was CVE-2001-0333 disclosed?

CVE-2001-0333 was first published in the National Vulnerability Database on June 27, 2001, 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-2001-0333 actively exploited?

CVE-2001-0333 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2001-0333?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-0333, 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-2001-0333

📅 Published

🔄 Last Modified

🔗 References (18)