CVE-2020-26245

Name: CVE-2020-26245
Creator: NVD / NIST
Published: 2020-11-27T20:15:10.963+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.93%

Last modified Jun 17, 2026

CVE-2020-26245 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 1.93% chance of exploitation in the next 30 days.

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().

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.93%

77.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Systeminformation	Systeminformation	< 4.30.5

References

https://github.com/sebhildebrandt/systeminformation/commit/8113ff0e87b2f422a5756c48f1057575e73af016Patch, Third Party Advisory
https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-4v2w-h9jm-mqjgThird Party Advisory
https://github.com/sebhildebrandt/systeminformation/commit/8113ff0e87b2f422a5756c48f1057575e73af016Patch, Third Party Advisory
https://github.com/sebhildebrandt/systeminformation/security/advisories/GHSA-4v2w-h9jm-mqjgThird Party Advisory

Timeline

Published: Nov 27, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-26245?

How severe is CVE-2020-26245?

CVE-2020-26245 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.93% probability of exploitation in the next 30 days.

How do I fix CVE-2020-26245?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-26245?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST