CVE-2003-0993

mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not...

7.5 High

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.

Exploit likelihood

10.8%Up 3.5 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2003-0993
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2003-0993
Updated: 2026-11-02

EUVDEUVD-2003-0983 No score

Record: EUVD-2003-0983
Updated: 2026-11-03

GitHub AdvisoriesGHSA-4m6j-mh25-2w47 No score

mod_access in Apache 1.3 before 1.3.30, when running big-endian 64-bit platforms, does not...

Record: GHSA-4m6j-mh25-2w47
Updated: 2026-11-02

Affected products

apache http server

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2003-0993 is a high vulnerability (CVSS 7.5) in Apache Http Server, published March 29, 2004. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 10.8%, the 95th percentile. No source names a fixed version.

References

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