CVE-2026-91018
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.
- Published Sep 22, 2026
- CVSS 8.7 high
- 0.2% chance of exploitation in the next 30 days (EPSS)
Affected software
In the news
- lwIP (Lightweight IP) CISA ·