How severe is CVE-2020-26245?

CVE-2020-26245 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.

Is CVE-2020-26245 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26245?

CVE-2020-26245 affects Systeminformation. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26245?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-26245 published?

CVE-2020-26245 was published on 2020-11-27 and last updated on 2026-06-17.

CVE-2020-26245

CVE-2020-26245 is a high-severity vulnerability in Systeminformation with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 7.5
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Systeminformation
Published: 2020-11-27
Last modified: 2026-06-17

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().

Frequently asked questions

What is CVE-2020-26245?: 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().
How severe is CVE-2020-26245?: CVE-2020-26245 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability low.
Is CVE-2020-26245 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26245?: CVE-2020-26245 affects Systeminformation. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26245?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-26245 published?: CVE-2020-26245 was published on 2020-11-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:systeminformation:systeminformation:*:*:*:*:*:node.js:*:*

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