CVE-2003-0993: n/a vulnerability

CVE-2003-0993: mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not properly parse A...

mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not properly parse Allow/Deny rules using IP addresses without a netmask, which could allow remote attackers to bypass intended access restrictions.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 02:12 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Apache 1.3 access-control flaw. On big-endian 64-bit systems, Apache could misread certain IP-based Allow/Deny rules, letting remote users reach content that administrators intended to restrict. Exposure is likely limited to legacy Apache 1.3 deployments before 1.3.30 on big-endian 64-bit platforms, especially where mod_access uses IP rules written without netmasks. Modern Apache 2.x deployments are not identified as affected in the bundle. Prioritize if the organization still operates legacy Apache 1.3 on older 64-bit big-endian infrastructure. For most modern environments, urgency is lower, but any internet-facing affected server should be remediated because access controls may fail silently. Mitigation focus: Upgrade Apache 1.3 deployments to version 1.3.30 or later where applicable.; Apply vendor distribution advisories or patched packages for legacy systems.; Review mod_access Allow/Deny rules that use IP addresses without netmasks..

Prepared: Jun 30, 2026, 03:02 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 1, 2004, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

12Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
oval:org.mitre.oval:def:100111CVE reference · vdb-entry, signature
apache-modaccess-obtain-information(15422)CVE reference · vdb-entry, x_refsource_XF
oval:org.mitre.oval:def:4670CVE reference · vdb-entry, signature
[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1073139 [2/13] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1073140 [1/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlCVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1888194 [2/13] - /httpd/site/trunk/content/security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1073149 [3/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210603 svn commit: r1075360 [1/3] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2021-31618.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlCVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210606 svn commit: r1075470 [1/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlCVE reference · mailing-list, x_refsource_MLIST

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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