How severe is CVE-2007-1862?

CVE-2007-1862 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2007-1862 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-1862?

CVE-2007-1862 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-1862?

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

When was CVE-2007-1862 published?

CVE-2007-1862 was published on 2007-06-04 and last updated on 2026-06-16.

CVE-2007-1862

CVE-2007-1862 is a medium-severity vulnerability in Apache Http Server with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Http Server
Published: 2007-06-04
Last modified: 2026-06-16

Description

The recall_headers function in mod_mem_cache in Apache 2.2.4 does not properly copy all levels of header data, which can cause Apache to return HTTP headers containing previously used data, which could be used by remote attackers to obtain potentially sensitive information.

Frequently asked questions

What is CVE-2007-1862?: The recall_headers function in mod_mem_cache in Apache 2.2.4 does not properly copy all levels of header data, which can cause Apache to return HTTP headers containing previously used data, which could be used by remote attackers to obtain potentially sensitive information.
How severe is CVE-2007-1862?: CVE-2007-1862 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2007-1862 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-1862?: CVE-2007-1862 affects Apache Http Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-1862?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2007-1862 published?: CVE-2007-1862 was published on 2007-06-04 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:apache:http_server:2.2.4:*:*:*:*:*:*:*

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Threat intelligence

Threat-intel indicators referencing this CVE:

222.99.52.202 (ipv4-addr)