VulnSocial

CVE-2026-22925Patch(siemens / simatic_cn_4100)

LOWCVSS 8.7 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch siemens simatic_cn_4100 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0). The affected application is susceptible to resource exhaustion when subjected to high volume of TCP SYN packets This could allow an attacker to render the service unavailable and cause denial-of-service conditions by overwhelming system resources.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • simatic_cn_4100
  • simatic_cn_4100_firmware

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Affected systems

Vendors
siemens
Products
simatic_cn_4100simatic_cn_4100_firmware

1 version affected across 2 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-12: 1Patch / Workaround · 2026-05-12: 1Technical Details · 2026-05-12: 105-12
Signal classification1 categories
Patch
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Entity@0x2ed3bb60
    Patch

    🚨 Entity detected CVE-2026-22925: SIMATIC CN 4100 (all versions &lt; V5.0) fails under TCP SYN flood, causing resource exhaustion and denial of service. Industrial control systems exposed. Upgrade to V5.0 or isolate affected nodes. https://0x2ed3bb60.xyz/threat/d763e517e4757314

    Post summary

    The post alerts that older SIMATIC CN 4100 devices are vulnerable to a TCP SYN flood that causes denial of service and advises upgrading to V5.0 or isolating affected nodes.

    000009
    7 followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWsiemenssimatic_cn_4100---
OSsiemenssimatic_cn_4100_firmware---

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