CVE-2026-49975

Name: CVE-2026-49975
Creator: NVD / NIST
Published: 2026-06-08T16:16:44.223+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 9.85%

Last modified Jun 25, 2026

CVE-2026-49975 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.. EPSS estimates a 9.85% chance of exploitation in the next 30 days.

Description

Memory Allocation with Excessive Size Value vulnerability in Apache HTTP Server's mod_http leads to denial of service via malicious HTTP requests. This issue affects Apache HTTP Server: from 2.4.17 through 2.4.67.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

9.85%

95.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-789

Affected Software

Vendor	Product	Versions
Apache	Http Server	>= 2.4.17, < 2.4.68
Debian	Debian Linux	11.0

References

https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/03/3Mailing List, Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/06/08/16Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2026/06/msg00009.htmlMailing List, Third Party Advisory
https://github.com/EQSTLab/CVE-2026-49975Exploit, Third Party Advisory

Timeline

Published: Jun 8, 2026
Last Modified: Jun 25, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-49975?

How severe is CVE-2026-49975?

CVE-2026-49975 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 9.85% probability of exploitation in the next 30 days.

How do I fix CVE-2026-49975?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-49975?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST