CVE-2024-45397 is a vulnerability in the dena h2o HTTP server that allows attackers to bypass IP-address-based access control. When using TLS/1.3 early data with TCP Fast Open or QUIC 0-RTT, the server fails to properly validate the source IP address of incoming requests, enabling spoofed requests from otherwise blocked addresses. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity and potential for high confidentiality impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion regarding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2024-10-10CPE matchmatch criteria | cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
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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.