VulnSocial

CVE-2026-9637Active Exploitation

LOWCVSS 8.7 · HIGH

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)

NVD description

A denial-of-service security issue exists in the affected Logix platforms listed in the table above. The security issue stems from improper validation of input length during CIP message processing. This can result in a major nonrecoverable fault (MNRF), requiring a power cycle to recover

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3.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-119

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 · 2026-09-01: 1Active Exploitation · 2026-09-01: 1Technical Details · 2026-09-01: 109-01
Signal classification1 categories
Active Exploitation
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Aviatrix Threat Research Center@aviatrixtrc
    Active Exploitation

    Attackers exploit CVE-2026-9637 buffer overflow in Rockwell Automation Logix controllers by sending malformed CIP messages to trigger major nonrecoverable faults. Remote exploitation requires no authentication and forces complete power cycle recovery. Runtime segmentation helps limit blast radius when industrial networks face network-based attacks. #CloudSecurity :link: Full TRC analysis: https://aviatrix.ai/threat-research-center/rockwell-automation-logix-platform-cve-2026-9637-dos-vulnerability

    Post summary

    The post reports that attackers are actively exploiting CVE-2026-9637 on Rockwell Automation Logix controllers via malformed CIP messages, causing buffer overflows and power cycle resets, with no mention of a PoC, exploit tool, or patch.

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