# CVE-2003-1580

## Summary

- **CVE ID:** CVE-2003-1580
- **Severity:** MEDIUM
- **CVSS Score:** 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)
- **CWE:** N/A
- **Published:** Feb 5, 2010
- **Last Modified:** Mar 16, 2026

## Description

The Apache HTTP Server 2.0.44, when DNS resolution is enabled for client IP addresses, uses a logging format that does not identify whether a dotted quad represents an unresolved IP address, which allows remote attackers to spoof IP addresses via crafted DNS responses containing numerical top-level domains, as demonstrated by a forged 123.123.123.123 domain name, related to an "Inverse Lookup Log Corruption (ILLC)" issue.

## Affected Products

- n/a — n/a (n/a)

## References

- [CNA](http://www.securityfocus.com/archive/1/313867)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.18%
- **EPSS Percentile:** 78.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-19._