CampaignHuman reviewed 2026-08-26 · CISA advisory

Barracuda ESG Attacks

Email security gateways backdoored with malware implants

QUICK ANSWER

Barracuda ESG Attacks Relates to CVE-2023-2868. Source: CISA advisory.

Definition

Email security gateways backdoored with malware implants

Why It Matters / Impact

Email security gateways backdoored with malware implants

Current Status

  • Review status: published
  • Last updated: 2026-08-26
  • Evidence: 2 source(s) · 1 CVE(s) linked
  • Confidence: 85%

Timeline

  1. 2023-05 — Zero-day in Barracuda ESG
  2. 2023-06 — Forced appliance replacement

Sources

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  5. Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
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