CVE-2021-23337 — Command Injection

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

• Documented patch — cert-portal.siemens.com (NIST National Vulnerability Database)
• Documented patch — www.oracle.com (NIST National Vulnerability Database)
• Documented patch — www.oracle.com (NIST National Vulnerability Database)
• Documented patch — www.oracle.com (NIST National Vulnerability Database)
• Documented patch — www.oracle.com (NIST National Vulnerability Database)
• Npm Lodash: fixed in version 4.17.21 — github.com (GitHub Security Advisories)
• Npm Lodash-es: fixed in version 4.17.21 — github.com (GitHub Security Advisories)
• Rubygems Lodash-rails: fixed in version 4.17.21 — github.com (GitHub Security Advisories)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

1. Identify exposed assets running the affected vendor/product/version combinations (Lodash Lodash, Netapp Active Iq Unified Manager, Netapp Cloud Manager…).
2. Apply the fixed version or the patch documented under Remediation.
3. EPSS ahead of 98% of scored CVEs: prioritize it in the patch queue.
4. Search available logs for exploit probes matching the vulnerability class (injection), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-94 · Code Injection

Other CVEs with this weakness →

Public exploits, PoCs and detection templates

Public code that demonstrates or tests the flaw raises the odds of mass exploitation — and Nuclei templates help find vulnerable assets in your environment.

Warning: public PoCs are sometimes disguised malware. Use them only for authorized testing in an isolated environment. This portal does not host exploit code — it only points to the sources.

EPSS over time FIRST

Oct 13, 2026 → Oct 14, 2026 · 2 reading(s) · max 21.33%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

• Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
• Look for parameters with command/query metacharacters and unexpected child processes of the service.

Timeline

What happened to this CVE, newest first.

• 2026
• Fix documented
  Oct 15, 2026 · GitHub Security Advisories
• Affected products added · npm/lodash, npm/lodash-es, npm/lodash.template, npm/lodash-template, rubygems/lodash-rails
  Oct 15, 2026 · GitHub Security Advisories
• SSVC assessment updated
  Oct 13, 2026 · CVE Program (cve.org) e CISA ADP
• Record published
  Oct 13, 2026
• Fix documented
  Oct 13, 2026 · NIST National Vulnerability Database
• CVSS changed · 7.2
  Oct 13, 2026 · NIST National Vulnerability Database
• Source status changed · → Modified
  Oct 13, 2026 · NIST National Vulnerability Database
• Record created in this database
  Oct 13, 2026 · NIST National Vulnerability Database
• 2021
• CVE published
  Feb 15, 2021 · snyk

Source activity

Repeated readings are counted rather than listed.

• 1× References added · Oct 15, 2026 – Oct 15, 2026
• 1× Official description updated · Oct 13, 2026 – Oct 13, 2026

References

19 on the record

• cert-portal.siemens.com/productcert/pdf/ssa-637483.pdf
  Patch, Third Party Advisory, x_refsource_CONFIRM, NIST National Vulnerability Database
• www.oracle.com/security-alerts/cpuoct2021.html
  Patch, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• www.oracle.com/security-alerts/cpujan2022.html
  Patch, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• www.oracle.com/security-alerts/cpujul2022.html
  Patch, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• www.oracle.com//security-alerts/cpujul2021.html
  Patch, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1074930
  Exploit, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• github.com/rubysec/ruby-advisory-db/blob/master/gems/lodash-rails/CVE-2021-23337
  GitHub Security Advisories
• snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBLODASH-1074931
  Exploit, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• nvd.nist.gov/vuln/detail/CVE-2021-23337
  GitHub Security Advisories
• snyk.io/vuln/SNYK-JS-LODASH-1040724
  Exploit, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• github.com/lodash/lodash/blob/ddfd9b11a0126db2302cb70ec9973b66baec0975/lodash.js
  Broken Link, x_refsource_MISC, NIST National Vulnerability Database
• github.com/advisories/GHSA-35jh-r3h4-6jhm
  GitHub Security Advisories
• security.netapp.com/advisory/ntap-20210312-0006
  GitHub Security Advisories
• github.com/lodash/lodash/commit/3469357cff396a26c363f8c1b5a91dde28ba4b1c
  GitHub Security Advisories
• snyk.io/vuln/SNYK-JAVA-ORGWEBJARSBOWER-1074928
  Exploit, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• snyk.io/vuln/SNYK-JAVA-ORGFUJIONWEBJARS-1074932
  Exploit, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• github.com/lodash/lodash/blob/ddfd9b11a0126db2302cb70ec9973b66baec0975/lodash.js
  GitHub Security Advisories
• snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1074929
  Exploit, Third Party Advisory, x_refsource_MISC, NIST National Vulnerability Database
• security.netapp.com/advisory/ntap-20210312-0006/
  Third Party Advisory, x_refsource_CONFIRM, NIST National Vulnerability Database

Elsewhere on this site

Related CVEs (same products)

• High CVE-2026-87264 Improper Access Control in Oracle Peoplesoft Enterprise Peopletools Sep 15, 2026
• High CVE-2026-83206 Improper Access Control in Oracle Banking Corporate Lending Process Management Sep 15, 2026
• High CVE-2026-83017 Improper Access Control in Oracle Peoplesoft Enterprise Peopletools Sep 15, 2026
• High CVE-2026-83019 Improper Access Control in Oracle Peoplesoft Enterprise Peopletools Sep 15, 2026
• High CVE-2026-83018 Improper Access Control in Oracle Peoplesoft Enterprise Peopletools Sep 15, 2026
• High CVE-2026-83016 Improper Access Control in Oracle Peoplesoft Enterprise Peopletools Sep 15, 2026

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

• No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
• No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
• No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2021-23337 is "Command Injection", rated High. It affects Lodash (Lodash); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.2 describes technical severity. EPSS 21.33% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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