HOMEVULNERABILITIESCVE-2001-0766
CRITICALPOC

CVE-2001-0766

CWE-178Published: October 18, 2001· Updated: Jun 16, 2026

9.8
CVSS v3.1

Official Description

Apache on MacOS X Client 10.0.3 with the HFS+ file system allows remote attackers to bypass access restrictions via a URL that contains some characters whose case is not matched by Apache's filters.

NVD Source

Technical Analysis

CVE-2001-0766 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2001-0766. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Apache1 product(s)
http server
Apple1 product(s)
mac os x
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://archives.neohapsis.com/archives/bugtraq/2001-06/0090.html
PATCHhttp://www.securityfocus.com/bid/2852
PATCHhttp://archives.neohapsis.com/archives/bugtraq/2001-06/0090.html
PATCHhttp://www.securityfocus.com/bid/2852

All References (4)

→
http://archives.neohapsis.com/archives/bugtraq/2001-06/0090.htmlBroken Link · Patch · Vendor Advisory
→
http://www.securityfocus.com/bid/2852Broken Link · Exploit · Patch · Third Party Advisory · VDB Entry · Vendor Advisory
→
http://archives.neohapsis.com/archives/bugtraq/2001-06/0090.htmlBroken Link · Patch · Vendor Advisory
→
http://www.securityfocus.com/bid/2852Broken Link · Exploit · Patch · Third Party Advisory · VDB Entry · Vendor Advisory

Quick Facts

CVE IDCVE-2001-0766
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-178
CISA KEVNo
ExploitPOC
Affected2 vendor(s)
PublishedOct 18, 2001

Related CVEs (CWE-178)

CVE-2026-54763
10.0
CVE-2026-40453
9.9
CVE-2026-47323
9.8
CVE-2002-1820
9.8
CVE-2023-3545
9.8
CVE-2004-2214
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2001-0766 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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