CVE-2024-26225Active Exploitation

LOW

Exploitation ongoing with high activity in latest observed window (1 mentions)

Immediate actions

  • Prioritize remediation for affected systems immediately
  • Assume compromise if assets are exposed
  • Track advisory updates for patch or workaround availability

Recommended action window: Immediate (within 24h)

3.5/ 10 priority

Priority

LOW

Exploitation

ACTIVE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • Active exploitation appears in 1 classified signals
  • 1 mentions across 1 observed day

What's happening

  • Active exploitation reported across 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-02: 1Active Exploitation · 2026-09-02: 1Technical Details · 2026-09-02: 109-02
Signal classification1 categories
Active Exploitation
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Aviatrix Threat Research Center@aviatrixtrc
    Active Exploitation

    TRC analysis shows attackers exploiting CVE-2024-26225 authentication bypass on 22,000 unpatched Exchange servers to hijack all user mailboxes. Post-compromise lateral movement through stolen email credentials enables widespread organizational infiltration. Runtime segmentation helps contain breach chains across compromised infrastructure. #ZeroTrust 🔗 Full TRC analysis: https://aviatrix.ai/threat-research-center/microsoft-exchange-servers-cve-2026-62911-authentication-bypass-vulnerability

    Post summary

    Attackers are actively exploiting CVE-2024-26225 on unpatched Microsoft Exchange servers, hijacking mailboxes and enabling lateral movement across organizations.

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    2.0K followersView on X

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