How severe is CVE-2004-0751?

CVE-2004-0751 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2004-0751 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 70% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2004-0751?

CVE-2004-0751 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2004-0751?

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

When was CVE-2004-0751 published?

CVE-2004-0751 was published on 2004-10-20 and last updated on 2026-06-16.

CVE-2004-0751

CVE-2004-0751 is a medium-severity vulnerability in Apache Http Server with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 70% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 70% (99th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Http Server
Published: 2004-10-20
Last modified: 2026-06-16

Description

The char_buffer_read function in the mod_ssl module for Apache 2.x, when using reverse proxying to an SSL server, allows remote attackers to cause a denial of service (segmentation fault).

Frequently asked questions

What is CVE-2004-0751?: The char_buffer_read function in the mod_ssl module for Apache 2.x, when using reverse proxying to an SSL server, allows remote attackers to cause a denial of service (segmentation fault).
How severe is CVE-2004-0751?: CVE-2004-0751 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2004-0751 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 70% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2004-0751?: CVE-2004-0751 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2004-0751?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2004-0751 published?: CVE-2004-0751 was published on 2004-10-20 and last updated on 2026-06-16.

References

Affected products (1)

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

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