High severity8.8NVD Advisory· Published Sep 22, 2026· Updated Sep 23, 2026

CVE-2026-91018

Description

lwIP (Lightweight IP) has a double free vulnerability, which could crash the system, cause a DoS, memory corruption, or allow code execution on the victim system.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Lwip Project/Lwipllm-create

Patches

Vulnerability mechanics

References

github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-265-02.jsonnvd
www.cisa.gov/news-events/ics-advisories/icsa-26-265-02nvd

News mentions

lwIP (Lightweight IP)
CISA ICS Advisories

cvss	0.572
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000