CVE-2003-1054

CVE-2003-1054 is a medium-severity vulnerability in Mod Access Referer with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

mod_access_referer 1.0.2 allows remote attackers to cause a denial of service (crash) via a malformed Referer header that is missing a hostname, as parsed by the ap_parse_uri_components function in Apache, which triggers a null dereference.

Frequently asked questions

What is CVE-2003-1054?
mod_access_referer 1.0.2 allows remote attackers to cause a denial of service (crash) via a malformed Referer header that is missing a hostname, as parsed by the ap_parse_uri_components function in Apache, which triggers a null dereference.
How severe is CVE-2003-1054?
CVE-2003-1054 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-1054 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1054?
CVE-2003-1054 affects Mod Access Referer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-1054?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-1054 published?
CVE-2003-1054 was published on 2003-04-16 and last updated on 2026-06-16.

References

Affected products (1)