CVE-2026-57842 (GCVE-0-2026-57842)
Vulnerability from cvelistv5
Published
2026-09-11 13:48
Modified
2026-09-11 14:56
Severity ?
7.3 (High) - CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Summary
NetBSD contains a use-after-free and double-free vulnerability in msg_recv_copyin() within the COMPAT_NETBSD32 compatibility layer due to a missing return statement before the cleanup label on the success path. Any local user able to execute a 32-bit binary on a 64-bit NetBSD system can trigger a kernel panic or memory corruption by calling recvmsg() with msg_iovlen between 9 and IOV_MAX, causing the kernel to access a freed iovec buffer and subsequently free the same allocation a second time.
References
Impacted products
Vendor Product Version
The NetBSD Foundation NetBSD Version: 8.0   <
Version: 9.0   < 9.5
Version: 10.0   <
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