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CVE-2026-49975

HIGHCVSS 7.5/10EPSS 27.98%

Last modified

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 27.98% 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
27.98%

97.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
ApacheHttp Server>= 2.4.17, < 2.4.68
DebianDebian Linux11.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2026-49975?
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.
How severe is CVE-2026-49975?
CVE-2026-49975 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 27.98% 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.

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Source: NVD / NIST