CVE-2026-46185
Linux Kernel out-of-bounds read
- Published28 May 2026
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.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HAffected products
Remediation
- https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c
- https://git.kernel.org/stable/c/2be11faf79e49fb8250a181ff0b4d2b2f084af83
- https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212
- https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6
- https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20
- https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c
References
- https://git.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396c
- https://git.kernel.org/stable/c/2be11faf79e49fb8250a181ff0b4d2b2f084af83
- https://git.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212
- https://git.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6
- https://git.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20
- https://git.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2026-46185 being actively exploited?
CVE-2026-46185 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.70%.
How severe is CVE-2026-46185?
CVE-2026-46185 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 0.70% probability of exploitation.
Which products are affected by CVE-2026-46185?
Affected products include Linux Kernel.
How do I fix CVE-2026-46185?
Upgrade affected software to a fixed version, for example Linux Kernel 6.1.175 or later, then confirm no affected versions remain in your inventory.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2026-46185 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.