CVEvulnerability

CVE-2024-6863

6.5 MEDIUM Published 2025-03-20 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2025-03-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
6.5 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weaknesses
CWE-749

Description

In h2oai/h2o-3 version 3.46.0, an endpoint exposing a custom EncryptionTool allows an attacker to encrypt any files on the target server with a key of their choosing. The chosen key can also be overwritten, resulting in ransomware-like behavior. This vulnerability makes it possible for an attacker to encrypt arbitrary files with keys of their choice, making it exceedingly difficult for the target to recover the keys needed for decryption.

Affected configurations

• h2o h2o 3.46.0

Related

Weakness · CWE (1)

  • CWE-749 Exposed Dangerous Method or Function weakness

References