CVE-2003-0253

CVE-2003-0253 is a medium-severity vulnerability in Apache Http Server 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

The prefork MPM in Apache 2 before 2.0.47 does not properly handle certain errors from accept, which could lead to a denial of service.

Frequently asked questions

What is CVE-2003-0253?
The prefork MPM in Apache 2 before 2.0.47 does not properly handle certain errors from accept, which could lead to a denial of service.
How severe is CVE-2003-0253?
CVE-2003-0253 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-0253 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 9% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0253?
CVE-2003-0253 primarily affects Apache Http Server. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0253?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-0253 published?
CVE-2003-0253 was published on 2003-08-18 and last updated on 2026-06-16.

References

Affected products (15)

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