CVE-2026-459729.8CriticalCWE-825

CVE-2026-45972: smb: client: fix potential UAF and double free in smb2_open_file()

Linux

Vendor fix available · Affected: Linux · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.3%probability of exploitation in the next 30 days

26th percentile

050100

Higher than 26% of scored CVEs

9.8CriticalCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF and double free in smb2_open_file() Zero out @err_iov and @err_buftype before retrying SMB2_open() to prevent an UAF bug if @data != NULL, otherwise a double free.

Affected products2

From the CVE record. A product or version that is not listed is unknown, not unaffected.

Linux · Linuxfrom 6.1.163 before 6.1.165; from 6.6.124 before 6.6.128; from 6.12.70 before 6.12.75; from 6.18.10 before 6.18.14
Linux · Linux6.19

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Expired Pointer Dereference · Memory Corruption
Vendor: Linux
Published: May 2026
Band: Unlikely (under 1%), May 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-45972 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.