How severe is CVE-2003-1580?

CVE-2003-1580 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2003-1580 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1580?

CVE-2003-1580 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-1580?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2003-1580 published?

CVE-2003-1580 was published on 2010-02-05 and last updated on 2026-06-16.

CVE-2003-1580

CVE-2003-1580 is a medium-severity vulnerability in Apache Http Server with a CVSS 2.0 base score of 4.3. 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-189.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-189
Affected product: Apache Http Server
Published: 2010-02-05
Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2003-1580?: 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.
How severe is CVE-2003-1580?: CVE-2003-1580 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2003-1580 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1580?: CVE-2003-1580 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-1580?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-1580 published?: CVE-2003-1580 was published on 2010-02-05 and last updated on 2026-06-16.

References

http://www.securityfocus.com/archive/1/313867

Affected products (1)

cpe:2.3:a:apache:http_server:2.0.44:*:*:*:*:*:*:*

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