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Vulnerabilities CVE-2026-46185

CVE-2026-46185

Critical
Open
TLP:CLEAR

smb/client: fix out-of-bounds read in symlink_data()

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Description

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlink_data() Since smb2_check_message() returns success without length validation for the symlink error response, in symlink_data() it is possible for iov->iov_len to be smaller than sizeof(struct smb2_err_rsp). If the buffer only contains the base SMB2 header (64 bytes), accessing err->ErrorContextCount (at offset 66) or err->ByteCount later in symlink_data() will cause an out-of-bounds read.

Details

CVSS Score
9.1
EPSS Score
0.51%

41.1th percentile

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Confidence
90%
Published
May 28, 2026
Last Modified
Aug 5, 2026
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