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No exploitation reportedFix available

CVE-2021-22921

No exploitation reported by the sources we read.

  • Published2021-07-12
  • Fixed in16.4.1 · 14.17.2 · 12.22.2
  • WeaknessCWE-732

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Node.js before 16.4.1, 14.17.2, and 12.22.2 is vulnerable to local privilege escalation attacks under certain conditions on Windows platforms. More specifically, improper configuration of permissions in the installation directory allows an attacker to perform two different escalation attacks: PATH and DLL hijacking.

Timeline

dates in UTC
  1. 2021-07-1211:15CVE publishedNVD

Versions per branch

NVD · OSV
Node.jsversion to verify
BranchAffectedFixed in
16.x≥ 16.0.0, < 16.4.116.4.1
14.x≥ 14.0.0, < 14.17.214.17.2
12.x≥ 12.0.0, < 12.22.212.22.2
Siemens sinec infrastructure network services
BranchAffectedFixed in
1.0< 1.0.1.11.0.1.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • nodejsopenEuler:20.03-LTS-SP3all versions · fixed in 12.22.11-1.oe1
  • nodejsopenEuler:20.03-LTS-SP2all versions · fixed in 12.22.11-1.oe1
  • nodejsopenEuler:20.03-LTS-SP1all versions · fixed in 12.22.11-1.oe1

Vendor advisories

  • ICSA-22-069-09 CISA1 known affected

    Siemens SINEC INS

    SINEC INS

  • SSA-389290 Siemens ProductCERT1 known affected

    SSA-389290: Third-Party Component Vulnerabilities in SINEC INS

    SINEC INS

Full record on NVD

Fix

  1. Update Node.js to 16.4.1 · 14.17.2 · 12.22.2
  2. Vendor fix Siemens ProductCERT SSA-389290 · 1 productUpdate to V1.0.1.1 or later version
  3. Vendor fix CISA ICSA-22-069-09 · 1 productUpdate to V1.0.1.1 or later version

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • NVDCVSS 3.17.8read 2026-10-23
  • NVDCVSS 2.04.4read 2026-10-23
  • CNAweakness (CWE)CWE-732known since 2026-10-23
  • NVDweakness (CWE)CWE-732read 2026-10-23
  • FIRST EPSSEPSS score7.4 %2026-11-09
  • OSVaffected packages—
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2021-07-12
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-g3w9-g82h-cmp4

Frequently asked questions

What is CVE-2021-22921?

Node.js before 16.4.1, 14.17.2, and 12.22.2 is vulnerable to local privilege escalation attacks under certain conditions on Windows platforms. More specifically, improper configuration of permissions in the installation directory allows an attacker to perform two different escalation attacks: PATH and DLL hijacking.

Is CVE-2021-22921 actively exploited?

Active exploitation of CVE-2021-22921 has not been confirmed. Its EPSS score was 7.4% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-22921?

CVE-2021-22921 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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