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Vulnerabilities

Vulnerability · CVE-2001-0766

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 n…

Published Oct 18, 2001 · catalog updated Jun 16, 2026 · Apple http server

Check if you run it

No confirmed exploitation is on record for CVE-2001-0766. EPSS is 8.16%. Act only if a listed version of Apple http server is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
8.16%
Remediation
Advisory link
Affected products
cpe apache/http server

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/http server1.3.14

How to fix CVE-2001-0766

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2001-0766. EPSS is 8.16%. Act only if a listed version of Apple http server is installed.

Which versions are affected?

Compare what you have installed with apache/http server 1.3.14. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-178. EPSS 8.16%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 18, 2001 · Apple Security Releases

    Detected

    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.

  2. Jun 16, 2026 · Apple Security Releases

    Updated

    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.

Sources

  • Apple Security ReleasesVendor advisoryCVE-2001-0766

    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.nist.gov
  • CVE.orgVulnerability recordCVE-2001-0766

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2001-0766

    30-day exploitation probability 8.2%

    first.org

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.