← Vulnerability feed

Vulnerability record · CVE-2025-63721 · published 8 December 2025

CVE-2025-63721: Hummerrisk deserialization of untrusted data vulnerability

HHummerrisk · Hummerrisk

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.

8.8 CVSS 3.1 High EPSS 0.49% · top 60.2% CWE-502 · Deserialization of untrusted data
8.8CVSS 3.1 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 4 tagged exploit
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://gist.github.com/k1ng0fic3/e8c8c9353fff8fa95e2c2952587e9266 ExploitThird Party Advisory
https://github.com/k1ng0fic3/secrisk/blob/main/README.md ExploitThird Party Advisory
https://gist.github.com/k1ng0fic3/e8c8c9353fff8fa95e2c2952587e9266 ExploitThird Party Advisory
https://github.com/k1ng0fic3/secrisk/blob/main/README.md ExploitThird Party Advisory

Track CVE-2025-63721 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2023-43449Hummerrisk code injection vulnerabilityAn issue in HummerRisk HummerRisk v.1.10 thru 1.4.1 allows an authenticated attacker to execute arbitrary code via a crafted request to the service/L…EPSS 0.82%2.1CVE-2026-3067Hummerrisk path traversal vulnerabilityA vulnerability has been found in HummerRisk up to 1.5.0. This issue affects the function extractTarGZ/extractZip of the file hummer-common/hummer-co…EPSS 0.81%2.1CVE-2026-3066Hummerrisk injection vulnerabilityA flaw has been found in HummerRisk up to 1.5.0. This vulnerability affects the function fixedCommand of the file hummer-common/hummer-common-core/sr…EPSS 8.6%2.1CVE-2026-3064Hummerrisk injection vulnerabilityA security vulnerability has been detected in HummerRisk up to 1.5.0. Affected by this issue is some unknown functionality of the file ResourceCreate…EPSS 8.6%2.1CVE-2026-3065Hummerrisk injection vulnerabilityA vulnerability was detected in HummerRisk up to 1.5.0. This affects the function CommandUtils.commonExecCmdWithResult of the file CloudTaskService.j…EPSS 8.6%

Source: NIST National Vulnerability Database (record CVE-2025-63721), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.