CVE-2025-63721

HIGH
Published Dec 8, 2025 Modified Dec 11, 2025 CWE-502

Description

HummerRisk thru v1.5.0 is using a vulnerable Snakeyaml component, allowing attackers with normal user privileges to hit the /rule/add API and thereby achieve RCE and take over the server.

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CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-502 Deserialization of Untrusted Data

Affected Products

Vendor Product
hummerrisk hummerrisk

References

Frequently Asked Questions

What is CVE-2025-63721? +
HummerRisk thru v1.5.0 is using a vulnerable Snakeyaml component, allowing attackers with normal user privileges to hit the /rule/add API and thereby achieve RCE and take over the server. It has a CVSS v3.1 base score of 8.8 (HIGH).
How severe is CVE-2025-63721? +
CVE-2025-63721 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-63721? +
CVE-2025-63721 affects products from hummerrisk, specifically: hummerrisk. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-63721? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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