CASCACascade Atlas

Evidence dossier

CVE-2021-21315

Command Injection Vulnerability

Exploited in the wild (CISA KEV since Jan 18, 2022). NVD reports CVSS 3.1 7.8. EPSS estimates 90.7% exploit likelihood as of Aug 26, 2026.

81.0–83.8Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

The System Information Library for Node.JS (npm package "systeminformation") is an open source collection of functions to retrieve detailed hardware, system and OS information. In systeminformation before version 5.3.1 there is a command injection vulnerability. Problem was fixed in version 5.3.1. As a workaround instead of upgrading, be sure to check or sanitize service parameters that are passed to si.inetLatency(), si.inetChecksite(), si.services(), si.processLoad() ... do only allow strings, reject any arrays. String sanitation works as expected.

State
PUBLISHED
Published
Feb 16, 2021
Updated
Oct 21, 2025
Evidence coverage
95%

Evidence chronology

What was known when

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  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    GitHub_M

    Record text: Command Injection Vulnerability

    Inspect raw assertion
    Field
    container
    Value
    Command Injection Vulnerability
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: System Information Library for Node.JS Command Injection

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    System Information Library for Node.JS Command Injection
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 90.68% probability · 99.79th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.906750000000; percentile 0.997940000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Jan 18, 2022 · first observed Jul 19, 2026

Exploit likelihood90.67%

FIRST EPSS · score date Aug 26, 2026 · 99.8th percentile · first observed Aug 26, 2026

SeverityCVSS 7.8

NVD · CVSS 3.1 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
GitHub_MOriginal assertion
Record text

Command Injection Vulnerability

Inspect raw assertion
Field
container
Value
Command Injection Vulnerability
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

System Information Library for Node.JS Command Injection

Inspect raw assertion
Field
observed_exploitation
Value
System Information Library for Node.JS Command Injection
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

90.68% probability · 99.79th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.906750000000; percentile 0.997940000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
2Underlying assertions
2Canonical products
2Target assertions
0Constraint assertions

Grouped from 2 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

3 scope groups

GitHub_M · source assertedsebhildebrandtsysteminformationDirect source scope
Affected: < 5.3.1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "< 5.3.1"}]
NVD CPE · APPLICATIONapachecordovaVulnerable target · 1 assertions
Version 10.0.0Canonical identity product-82e7dd044382b7815c4bdf36fbb7687a20ae2ebd3bac735ffc89dc6d29e93ce6Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:apache:cordova:10.0.0:*:*:*:*:-:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    480219c3-0bea-4b50-979e-88ea4e8f1dd3
NVD CPE · APPLICATIONsysteminformationsysteminformationVulnerable target · 1 assertions
Any version (unconstrained) (< 5.3.1)Canonical identity product-4faf8a9498306cce917228d4935af49a154813c5bf7c874c77bb997302850889Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:systeminformation:systeminformation:*:*:*:*:*:node.js:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 5.3.1
    Match ID
    52b945d4-063d-4674-9af0-12ad903b3b55

Affected-product evidence

Accepted scope and product mapping

2 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-e9750ebb7e9665b3d85de7352b6d94f54b705024372d076b05bb6d236e8c15a2 · product-4faf8a9498306cce917228d4935af49a154813c5bf7c874c77bb997302850889

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
dd686472-97b8-42dd-84df-78315f2f4374
Mapping establishedEvidence supported

vendor-8771dac0ae5eeec984ca23e4bbe5a243fb7896ad7c1c4afc6acd3abe53fdd152 · product-82e7dd044382b7815c4bdf36fbb7687a20ae2ebd3bac735ffc89dc6d29e93ce6

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
6ad95940-a086-4c04-bcc2-8f3f4c0edfa6
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
ece98a49-a436-4c6e-9f01-c02f7d37b9ee

Assessments

CVSS by origin

7.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:L/AC:L/Au:N/C:P/I:P/A:P
7.1
security-advisories@github.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
7.1
GitHub_MCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

Direct CVE/CNA normalized decisions

7.1Priority eligible

GitHub_M

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Validation
Valid match
Recomputed
7.1
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.