CVE-2002-0843

CVE-2002-0843 is a high-severity vulnerability in Apache Http Server with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Description

Buffer overflows in the ApacheBench benchmark support program (ab.c) in Apache before 1.3.27, and Apache 2.x before 2.0.43, allow a malicious web server to cause a denial of service and possibly execute arbitrary code via a long response.

Frequently asked questions

What is CVE-2002-0843?
Buffer overflows in the ApacheBench benchmark support program (ab.c) in Apache before 1.3.27, and Apache 2.x before 2.0.43, allow a malicious web server to cause a denial of service and possibly execute arbitrary code via a long response.
How severe is CVE-2002-0843?
CVE-2002-0843 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0843 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0843?
CVE-2002-0843 primarily affects Apache Http Server. In total, 30 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0843?
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-2002-0843 published?
CVE-2002-0843 was published on 2002-10-11 and last updated on 2026-06-16.

References

Affected products (30)

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