VendorsAppleswiftnio_sslany version
Vulnerabilities

Apple SwiftNIO SSL any version

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

2CVEs
CVE-2019-8849
The issue was addressed by signaling that an executable stack is not required. This issue is fixed in SwiftNIO SSL 2.4.1. A SwiftNIO application using TLS may be able to execute arbitrary code.
Published 2019-12-18 · Modified
9.8EPSS 0.022
CVE-2026-43820
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.
Published 2026-07-23 · Analyzed
7.7EPSS 0.001