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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cgit.git.savannah.gnu.org/cgit/lwip.git
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-265-02.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-265-02

Configurations

No configuration.

History

22 Sep 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-22 21:17

Updated : 2026-09-23 19:42

NVD link : CVE-2026-91018

Mitre link : CVE-2026-91018

CVE.ORG link : CVE-2026-91018

JSON object : View

Products Affected

No product.

CWE

CWE-415

Double Free

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