CVE-2024-6863

Encryption of Arbitrary Files with Attacker-Controlled Key in h2oai/h2o-3

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.0 •
EPSS 0.03%
Affected: h2oai h2oai/h2o-3
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2024-6863?
CVE-2024-6863 has been scored as a medium severity vulnerability.
How to fix CVE-2024-6863?
To fix CVE-2024-6863, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-6863 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-6863 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-6863?
CVE-2024-6863 affects h2oai h2oai/h2o-3.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.