CVE-2026-8449 - Linux ksmbd Remote Memory Corruption via ACL Inheritance

CVE-2026-8449 - Linux ksmbd Remote Memory Corruption via ACL Inheritance

https://cvefeed.io/rssfeed/latest.atom / Wed, 05/13/2026 - 02:23
CVE ID :CVE-2026-8449
Published : May 12, 2026, 10:16 p.m. | 40 minutes ago
Description :Linux ksmbd contains a remote memory corruption vulnerability in the ACL inheritance path that allows remote clients with directory creation permissions to trigger a heap out-of-bounds read and subsequent heap corruption by setting a crafted DACL with a malformed SID containing an inflated num_subauth field. Attackers can exploit this vulnerability by creating a directory, setting the malicious DACL via SMB2_SET_INFO, and creating child entries to cause kernel instability, denial of service, or potentially achieve privilege escalation to kernel code execution.
Severity: 8.8 | HIGH
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