CVE-2021-23337 - Vulnerability Details

Threat entity extracted from intelligence sources

Frequency
2
occurrences
First Seen
June 9, 2026
Last Seen
June 9, 2026

CVE-2021-23337 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 2 intelligence report mentions.

CVE-2021-23337 is a vulnerability tracked across 1 threat cluster and 2 intelligence report mentions on ThreatCluster. First observed June 9, 2026; most recent activity June 9, 2026.

Related Threat Clusters

  • Multiple Lodash Vulnerabilities Affecting Ubuntu Versions

    Multiple vulnerabilities in Lodash were discovered, affecting several Ubuntu LTS versions including 16.04, 18.04, 20.04, 22.04, 24.04, and 25.10. The vulnerabilities include a prototype pollution issue in the…

    2 articles · Updated June 9, 2026

Recent Intelligence Reports

  • Ubuntu 26.04 LTS Lodash Critical Prototype Pollution Vuln USN-8411 — Linuxsecurity · June 9, 2026
  • USN-8411-1: Lodash vulnerabilities — Ubuntu · June 9, 2026

Related Entities

DDoS Zero-day Exploit Ubuntu CVE-2020-28500 CVE-2020-8203 CVE-2025-13465 CVE-2026-2950 CVE-2026-4800 CWE-1321 - Prototype Pollution Cwe-400 - Uncontrolled Resource Consumption CWE-78 - OS Command Injection CWE-94 - Code Injection

Frequently asked questions

What is CVE-2021-23337?

CVE-2021-23337 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 2 intelligence report mentions.

Is CVE-2021-23337 still active?

The most recent intelligence report mentioning CVE-2021-23337 on ThreatCluster is dated June 9, 2026.

What is CVE-2021-23337 associated with?

Across ThreatCluster reporting, CVE-2021-23337 most frequently co-occurs with DDoS, Zero-day Exploit, Ubuntu, CVE-2020-28500, CVE-2020-8203, among 12 tracked related entities.

What are the latest developments involving CVE-2021-23337?

The most significant recent cluster is “Multiple Lodash Vulnerabilities Affecting Ubuntu Versions” (2 articles · Updated June 9, 2026). CVE-2021-23337 appears across 1 threat cluster in total, listed above with sources.

How much reporting does ThreatCluster have on CVE-2021-23337?

CVE-2021-23337 appears in 2 intelligence report mentions across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown