How severe is CVE-2003-0987?

CVE-2003-0987 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2003-0987 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-0987?

CVE-2003-0987 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-0987?

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-2003-0987 published?

CVE-2003-0987 was published on 2004-03-03 and last updated on 2026-06-16.

CVE-2003-0987

CVE-2003-0987 is a high-severity vulnerability in Apache Http Server with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Http Server
Published: 2004-03-03
Last modified: 2026-06-16

Description

mod_digest for Apache before 1.3.31 does not properly verify the nonce of a client response by using a AuthNonce secret.

Frequently asked questions

What is CVE-2003-0987?: mod_digest for Apache before 1.3.31 does not properly verify the nonce of a client response by using a AuthNonce secret.
How severe is CVE-2003-0987?: CVE-2003-0987 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0987 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0987?: CVE-2003-0987 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0987?: 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-2003-0987 published?: CVE-2003-0987 was published on 2004-03-03 and last updated on 2026-06-16.

References

Affected products (1)

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

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Threat intelligence

Threat-intel indicators referencing this CVE:

90.160.135.217 (ipv4-addr)
62.36.19.42 (ipv4-addr)
62.36.19.41 (ipv4-addr)