Exploited CVEs / Apache / CVE-2024-38475

CVE-2024-38475

Apache HTTP Server Improper Escaping of Output Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2025-05-22 (that deadline has passed); treat that date as the outer bound for your own environment. Check the vendor security advisory for the fix.

CriticalCISA KEV

Actively exploited Apache HTTP Server vulnerability, Critical severity, CVSS 9.1. Added to the CISA KEV catalog 2025-05-01.

Senserva AI read on CVE-2024-38475CISA required actionOfficial fix for CVE-2024-38475Admin questions

Risk summary

CVSS base
9.1
EPSS exploit probability
100%
Severity
Critical
Added to KEV
2025-05-01
CISA due date
2025-05-22 (past due)
Patch now
Exploited in the wild: confirmed by the CISA KEV catalog, not predicted.
No vendor fix is mapped yet. This page refreshes daily and will name the patch the day one is published.
Do this now: Federal remediation deadline 2025-05-22; treat it as your outer bound. Patch now and verify deployment on every exposed device.

Updated July 27, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

Senserva AI Opinion for CVE-2024-38475

Apache HTTP Server's mod_rewrite module is among the most widely deployed pieces of software on the internet, and this improper output escaping flaw lets attackers map URLs to filesystem locations that were never meant to be reachable, resulting in code execution or source code disclosure. The EPSS score is a flat 100%, the Severity rating is Critical at CVSS 9.1, and CISA confirmed exploitation on 2025-05-01. Any internet-facing Apache server using rewrite rules should be treated as a target.

Do this: Update Apache HTTP Server on internet-facing systems first and audit mod_rewrite rules for patterns that expose filesystem paths.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2024-38475

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for CVE-2024-38475

Published
2025-05-01
Last revised
2025-05-01
Changes tracked
1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

CISA required action

Federal (BOD 22-01) remediation due date: 2025-05-22 (past due).

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Official fix for CVE-2024-38475

Check the vendor's security advisory channel for the patched HTTP Server versions and workarounds.

Common questions about CVE-2024-38475

Is CVE-2024-38475 actively exploited?

Yes. CVE-2024-38475 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2025-05-01, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 100%.

What is the CISA deadline and required action for CVE-2024-38475?

CISA set the federal (BOD 22-01) remediation due date at 2025-05-22, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What fixes CVE-2024-38475?

Check the vendor's security advisory for the patched HTTP Server versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.

Can I ask my own AI about CVE-2024-38475?

Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2024-38475's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed twice a day (5 AM and 3 PM US Central).

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Lexicon: the terms on this page
CVE
Common Vulnerabilities and Exposures. A unique ID for one publicly known vulnerability, such as CVE-2025-1234.
KB
Microsoft Knowledge Base article. The identifier for a specific Microsoft update.
KEV
CISA Known Exploited Vulnerabilities. CVEs confirmed exploited in the wild. Fix these first.
CVSS
Common Vulnerability Scoring System. A standardized Severity score from 0 to 10.
EPSS
Exploit Prediction Scoring System. The probability a CVE will be exploited in the next 30 days.
MSRC
Microsoft Security Response Center. Microsoft's Patch Tuesday advisories and KB-to-CVE mapping.
NVD
National Vulnerability Database (NIST). Authoritative CVE metadata and CVSS scores.
Ransomware
The vulnerability is linked to known ransomware activity.
Reference: Microsoft CVE and vulnerability management, the full CVE-to-patch lookup ranked by real-world risk, and the Microsoft patching guide, how Intune, Windows Autopatch, Defender, and Azure Update Manager fit together.
Data notice: this page, the feeds, and the API are provided as is, for informational purposes only, without warranty of any kind. Senserva, LLC does not guarantee the accuracy, completeness, or timeliness of third-party data (MSRC, NVD, CISA KEV, EPSS) and accepts no liability for actions taken based on it; verify against the authoritative vendor advisory before acting. Built daily with Senserva Trustworthy AI. All use of this data is subject to the Senserva EULA.