CVE-2026-43820
7.7
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Exploitability: 2.5 / Impact: 5.2
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
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 (1)
Products: Apple: Swiftnio Ssl
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| 2.18.0 ≤ version < 2.37.2 |
References (2)
Source: product-security@apple.com
Vendor AdvisoryExploit
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Vendor AdvisoryExploit
Timeline
No history available yet.