CVE-2026-499757.5HighCWE-789

CVE-2026-49975: Apache HTTP Server: mod_http2 denial of service

Apache Software Foundation · Apache HTTP Server

Vendor fix available · Affected: Apache Software Foundation Apache HTTP Server · Exploitation: likely to be exploited (10% or more)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

33.0%probability of exploitation in the next 30 days

98th percentile

050100

Higher than 98% of scored CVEs

7.5HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

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.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Apache Software Foundation · Apache HTTP Serverfrom 2.4.17 up to and including 2.4.67

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Likely to be exploited (10% or more). EPSS gives it a 10% or higher chance of exploitation in the next 30 days.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Memory Allocation with Excessive Size Value · Denial of Service
Vendor: Apache Software Foundation
Published: June 2026
Band: Likely to be exploited (10% or more), June 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-49975 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References

10 more references are in the CVE record.