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

Overview

Severity

High (CVSS 7.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-09

Last Updated

2026-06-12

EPSS Score

31.04% (percentile: 98.1%)

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 12 repositories

Affected Products (2)

Other

• 21448-17084
• 21442-17084

Revision History

• 2026-06-09: Information published.
• 2026-06-10: Information published.
• 2026-06-12: Information published.