#VU111974 Stack-based buffer overflow in Helm - CVE-2025-32387
Published: June 26, 2025
Vulnerability identifier: #VU111974
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-32387
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Helm
Helm
Software vendor:
The Helm Project
The Helm Project
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote unauthenticated attacker can craft a JSON Schema file within a chart with a deeply nested chain of references, leading to parser recursion that can exceed the stack size limit and trigger a stack overflow.
Remediation
Install updates from vendor's website.