๐Ÿ›ก๏ธ CVE-2026-43671
๐ŸŸ  CVSS 8.0 โ€” High โœ… No Known Exploit CWE-787 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

SwiftNIO: Out-of-bounds write via ByteBuffer index and length UInt32 overflow

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
CWE CWE-787
Public Exploit โœ… No
Source OSV
Published 2026-06-12
Updated 2026-06-13
Modified 2026-06-12
Fix URL N/A

Affected Packages

Software From version Fixed in
github.com/apple/swift-nio โ€” โ€”

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