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PatchSiren cyber security CVE debrief

CVE-2024-38475 Apache CVE debrief

CVE-2024-38475 is a known-exploited vulnerability affecting Apache HTTP Server. CISA added it to the Known Exploited Vulnerabilities catalog on 2025-05-01, which means defenders should treat it as a high-priority remediation item and follow vendor mitigation guidance.

Vendor
Apache
Product
HTTP Server
CVSS
Unknown
CISA KEV
Listed
Original CVE published
2025-05-01
Original CVE updated
2025-05-01
Advisory published
2025-05-01
Advisory updated
2025-05-01

Who should care

Apache HTTP Server operators, teams that consume Apache httpd as an embedded or bundled component, cloud and platform administrators, and incident response teams tracking known-exploited vulnerabilities should pay close attention.

Technical summary

The supplied corpus describes CVE-2024-38475 as an "Improper Escaping of Output Vulnerability" in Apache HTTP Server. The CISA KEV entry confirms known exploitation and instructs organizations to apply mitigations per vendor instructions or discontinue use if mitigations are unavailable. No affected versions, exploit prerequisites, or patch details are provided in the supplied source set.

Defensive priority

High. This is a CISA Known Exploited Vulnerability with a required action date of 2025-05-22, so it should be prioritized ahead of non-exploited issues.

Recommended defensive actions

  • Identify all Apache HTTP Server deployments, including indirect or bundled uses in appliances, applications, and cloud images.
  • Review the Apache and product-vendor advisories referenced by the official CVE and NVD records for patch or mitigation guidance.
  • Apply vendor-provided mitigations or updates as soon as validated in your environment.
  • If mitigations are unavailable, follow CISA guidance and discontinue use of the affected product or service where feasible.
  • Confirm exposure in internet-facing and high-trust environments first, then validate remediation with configuration and version inventories.

Evidence notes

This debrief is based on the supplied CISA KEV source item and the official CVE/NVD records. The KEV entry names the issue as "Apache HTTP Server Improper Escaping of Output Vulnerability," marks it as known exploited, and sets 2025-05-22 as the due date for mitigation. The supplied corpus does not include affected versions, CVSS scoring, or exploit chain details, so those are intentionally omitted.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-38475 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-38475

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-38475 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-38475

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.