CVE-2026-5188 | wolfSSL up to 5.9.0 Certificate integer underflow
A vulnerability has been found in wolfSSL up to 5.9.0 and classified as critical. Affected by this issue is some unknown functionality of the component Certificate Handler. Performing a manipulation results in integer underflow.
This vulnerability is cataloged as CVE-2026-5188. It is possible to initiate the attack remotely. There is no exploit available.