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Fencer Vulns
medium 5.9

CVE-2020-26300 json

Command injection in systeminformation

published 2020-10-27 6 y ago modified 2026-07-08 4 mo ago also GHSA-fj59-f6c3-3vw4 , EUVD-2020-1428

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 72%
public exploits
0
none known

Summary

systeminformation is an npm package that provides system and OS information library for node.js. In systeminformation before version 4.26.2 there is a command injection vulnerability. Problem was fixed in version 4.26.2 with a shell string sanitation fix.

Patch / fix

  • npm systeminformation 4.26.2
  • systeminformation systeminformation 4.26.2

Exploit prediction

1.41% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 5.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
npm systeminformation
<4.26.2
4.26.2

Affected products

  • sebhildebrandt systeminformation

Classification

Weakness
  • CWE-77 Improper Neutralization of Special Elements used in a Command
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.