CVE-2016-4817 describes a use-after-free vulnerability in the H2O HTTP/2 server, affecting versions before 1.7.3 and 2.x before 2.0.0-beta5. This high-severity flaw (CVSS 7.5) allows remote, unauthenticated attackers to trigger a denial of service (application crash) or potentially execute arbitrary code through a crafted HTTP/2 packet. Despite its severity, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.7.2CPE matchmatch criteria | cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:* | ||
<= 2.0.0CPE matchmatch criteria | cpe:2.3:a:dena:h2o:*:beta4:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.