CVE-2004-0747

CVE-2004-0747 is a high-severity vulnerability in Apache Http Server with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-131.

Key facts

Description

Buffer overflow in Apache 2.0.50 and earlier allows local users to gain apache privileges via a .htaccess file that causes the overflow during expansion of environment variables.

Frequently asked questions

What is CVE-2004-0747?
Buffer overflow in Apache 2.0.50 and earlier allows local users to gain apache privileges via a .htaccess file that causes the overflow during expansion of environment variables.
How severe is CVE-2004-0747?
CVE-2004-0747 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2004-0747 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0747?
CVE-2004-0747 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-0747?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2004-0747 published?
CVE-2004-0747 was published on 2004-10-20 and last updated on 2026-06-16.

References

Affected products (1)

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