CVE-2016-4817

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

lib/http2/connection.c in H2O before 1.7.3 and 2.x before 2.0.0-beta5 mishandles HTTP/2 disconnection, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted packet.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected software

No affected versions have been published.

Timeline

Published
Jun 19, 2016
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2016-4817: High severity, CVSS 7.5 | Vulnix