high severity September 22, 2026 · 1 min read

CISA ICS Advisory: lwIP (Lightweight IP)

Here’s what this advisory affects, and what to do about it.

Successful exploitation of this vulnerability could result in a system crash, a DoS, or memory corruption, which could lead to code execution on the victim system.

CISA ICS Advisory: lwIP (Lightweight IP)

Remote code execution via memory corruption

The advisory states that successful exploitation of the flaw could result in a system crash, denial-of-service condition, or memory corruption, which could lead to arbitrary code execution on the affected system. The advisory does not say whether the vulnerability has been exploited in the wild.

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Affected products

The vulnerability resides in lwIP, an open-source lightweight TCP/IP stack widely used in embedded systems, industrial control systems, and medical devices. The advisory does not list specific version numbers or affected product lines from individual vendors.

What to do

Determine whether any ICS, embedded, or medical devices in your environment use the lwIP stack
Check with device vendors or maintainers for available patches addressing this lwIP vulnerability
Apply vendor-supplied updates as soon as they become available
Implement network segmentation and other compensating controls listed in the advisory where immediate patching is not possible
Monitor vendor advisories and CISA’s ICS channel for updates on this issue

Organizations operating industrial control systems or safety-critical embedded devices should prioritize assessment of this advisory.

What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

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Report details & sourcing

By GalaxyWarden Threat Research · Editorial & sourcing standards

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Sources: CISA ICS Advisory

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