CVE-2025-6507 is a critical deserialization vulnerability in h2oai/h2o-3, affecting versions up to 3.47.0.99999. Attackers can bypass regular expression filters in JDBC connection handling by manipulating spaces, leading to arbitrary code execution and unauthorized system file access. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low complexity and no user interaction, resulting in complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion, indicating high awareness.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| H2oai | H2oai/H2o-3 | >= unspecified, < 3.46.0.8CNA affected |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.