Uncaught Exception in systeminformation - #VU166139
Published: November 12, 2026
Vulnerability identifier: #VU166139
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-248
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service by terminating the Node.js process.
The vulnerability exists due to uncaught asynchronous exceptions in systeminformation's callback-only functions when get() or observe() passes an unvalidated parameter string as a callback. A remote attacker can submit crafted field selections such as { networkInterfaceDefault: '(a)' } through an application forwarding untrusted input, or supply a non-function callback directly where exposed, to trigger a TypeError outside promise rejection handling and crash the process.
Affected software
systeminformation
Remediation
Install security update from vendor's website.
systeminformation - update to 5.33.19