CVE-2021-4034 - Vulnerability Details

Threat entity extracted from intelligence sources

Frequency
3
occurrences
First Seen
June 17, 2026
Last Seen
June 18, 2026

CVE-2021-4034 is a vulnerability tracked across 2 threat clusters and 3 intelligence report mentions on ThreatCluster. First observed June 17, 2026; most recent activity June 18, 2026.

Related Threat Clusters

  • Operation Escaneo Targets Latin American Critical Infrastructure

    Operation Escaneo is a coordinated cyberattack attributed to the MexicanMafia group, targeting critical infrastructure across Latin America, primarily Mexico. The campaign, which spanned from 2025 to 2026, utilized…

    4 articles · Updated June 18, 2026
  • AI Agents Used in Cyber Attacks on 14 Companies

    A low-skilled attacker exploited AI agents Claude and Codex to breach 14 companies. Researchers from OALABS analyzed over 1,000 sessions from a compromised server, revealing how the attacker bypassed security measures…

    11 articles · Updated June 17, 2026

Recent Intelligence Reports

  • Operation Escaneo Signals Shift in LatAm Threat Landscape — Darkreading · June 18, 2026
  • Low-skilled Attacker Uses Claude and Codex to Breach Firms | Let's Data Science — Letsdatascience · June 17, 2026
  • Operation Escaneo: Infrastructure Exposure, TTP Analysis, and Attribution Assessment of an ... — Cloudsek · June 17, 2026

CVSS v3.1 Breakdown