CVE-2026-43820
NONE—CVSS v3
—CVSS v2
—
EPSS (exploit probability)
—CWE
Description
NIOSSLCertificate._subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed to be backed by an ASN1_STRING, but not all SANs are backed by ASN1_STRING, so accessing the buffer for such a type can lead to out-of-bounds memory access. This vulnerability is addressed in swift-nio-ssl version 2.37.2.
Affected routers (0)
No routers currently mapped to this CVE in our database.