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CVE-2026-46185

9.1 · CRITICAL

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 t…

Published May 28, 2026CWE-125EPSS 0.53%

Overview

CVE-2026-46185 is a critical-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/15dc0a4de743a1aaa7b859b3aea79f08c695396cRefgit.kernel.org/stable/c/2be11faf79e49fb8250a181ff0b4d2b2f084af83Refgit.kernel.org/stable/c/b8c8a704f0bc133deb171f6aeb6f3a684203e212Refgit.kernel.org/stable/c/b9561402489d41149f63e001a74384863b7b30a6Refgit.kernel.org/stable/c/d62b8d236fab503c6fec1d3e9a38bea71feaca20Refgit.kernel.org/stable/c/ef6495d4df6e7af8f3de67e65150881c880f696c

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46185?

CVE-2026-46185 is a critical-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-46185?

This vulnerability has a CVSS 3.1 base score of 9.1, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-46185?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-46185?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46185 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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