CVE-2024-38475

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2025-05-01. Federal remediation due 2025-05-22.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

99.96% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 100.0% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-07-01 18:15Z2 YR AGO

Last updated

2025-11-03 21:55Z10 MO AGO

Reserved

2024-06-17

Assigning CNA

apache

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

• CWE-116Improper Encoding or Escaping of OutputClass

Data version

5.2

Document digest

4994ff404bee266064fe8ffad40b894768c88393221ee13dd66cdf356c7d7767

• httpd.apache.orghttps://httpd.apache.org/security/vulnerabilities_24.htmlvendor-advisory
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20240712-0001/
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-38475government-resource
• www.blackhat.comhttps://www.blackhat.com/us-24/briefings/schedule/index.html#confusion-attacks-exploiting-hidden-semantic-ambiguity-in-apache-http-server-pre-recorded-40227
• github.comhttps://github.com/apache/httpd/commit/9a6157d1e2f7ab15963020381054b48782bc18cf
• www.openwall.comhttp://www.openwall.com/lists/oss-security/2024/07/01/8
• psirt.global.sonicwall.comhttps://psirt.global.sonicwall.com/vuln-detail/SNWLID-2024-0018