lwIP (Lightweight IP)
ID: 766cf24d-e72e-5da8-870a-c5ba426c4772
STIX ID: report--766cf24d-e72e-5da8-870a-c5ba426c4772
Feed Name: CISA Advisories
Threat Score
**CISA advisory:** A double-free vulnerability (CVE-2026-91018) in lwIP API versions >=2.0.1 and <=2.2.1 carries a CVSS v3 score of 8.8 and could lead to system crashes, DoS, memory corruption, or local code execution; CISA lists affected critical infrastructure sectors worldwide, provides mitigation guidance, and notes no known public exploitation and that the issue is not remotely exploitable.
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