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ID:11955 - Exploit for Resource exhaustion in h2o - CVE-2025-8671
ID:11955 - Exploit for Resource exhaustion in h2o - CVE-2025-8671
Published: September 12, 2025
Vulnerability identifier: #VU114025
Vulnerability risk: Medium
CVE-ID: CVE-2025-8671
CWE-ID: CWE-400
Exploitation vector: Remote access
Vulnerable software:
h2o
h2o
Link to public exploit:
Vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when handling HTTP/2 requests. A remote attacker can send specially crafted HTTP requests to the affected server and consume its all available memory, leading to denial of service.
Remediation
Install updates from vendor's website.