CVE-2020-26245

Prototype Pollution leading to Command Injection in systeminformation

CRITICAL
9.8
CVSS Score
Published: November 27, 2020 at 07:50 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
2 products affected across 2 vendorsSysteminformationSysteminformation

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

npm package systeminformation before version 4.30.5 is vulnerable to Prototype Pollution leading to Command Injection. The issue was fixed with a rewrite of shell sanitations to avoid prototyper pollution problems. The issue is fixed in version 4.30.5. If you cannot upgrade, be sure to check or sanitize service parameter strings that are passed to si.inetChecksite().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.30.5
Affected range stops below 4.30.5, so it looks safe — our inference, not a vendor statement
v < 4.30.5
Affected range stops below 4.30.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-78CWE-471

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