Skip to main content

Swift Nio Ssl

1 CVEs product

Monthly

CVE-2026-43820 Jul 23, 14:33 HIGH PATCH This Week

Out-of-bounds memory access in Apple swift-nio-ssl allows information disclosure and denial of service when parsing X.509 certificates with non-ASN1_STRING Subject Alternative Names. The vulnerability affects versions prior to 2.37.2 and can be triggered locally by a crafted certificate, leading to potential data leakage or process crash. Public proof-of-concept code exists, but no active exploitation has been reported at this time.

Buffer Overflow Information Disclosure Apple Swift Nio Ssl
NVD VulDB GitHub
CVSS 3.1
7.7
EPSS
0.1%
EPSS 0% CVSS 7.7
HIGH PATCH This Week

Out-of-bounds memory access in Apple swift-nio-ssl allows information disclosure and denial of service when parsing X.509 certificates with non-ASN1_STRING Subject Alternative Names. The vulnerability affects versions prior to 2.37.2 and can be triggered locally by a crafted certificate, leading to potential data leakage or process crash. Public proof-of-concept code exists, but no active exploitation has been reported at this time.

Buffer Overflow Information Disclosure Apple +1
NVD VulDB GitHub

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy