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Vulnerabilities

Vulnerability · CVE-2025-40053

In the Linux kernel, the following vulnerability has been resolved: net: dlink: handle copy_thresh allocation failure The driver did not handle failure of .

Published Oct 28, 2025 · catalog updated Oct 15, 2026 · the affected product

Check if you run it

No confirmed exploitation is on record for CVE-2025-40053. EPSS is 0.63%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.63%
Remediation
Not established
Affected products
See sources for product scope

In the Linux kernel, the following vulnerability has been resolved: net: dlink: handle copy_thresh allocation failure The driver did not handle failure of . If the allocation failed, dereferencing could lead to a NULL pointer dereference. This patch tries to allocate . If the allocation fails, it falls back to the normal path. Tested-on: D-Link DGE-550T Rev-A3

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2025-40053

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-40053. EPSS is 0.63%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.63%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 28, 2025 · NIST NVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: net: dlink: handle copy_thresh allocation failure The driver did not handle failure of . If the allocation failed, dereferencing could lead to a NULL pointer dereference. This patch tries to allocate . If the allocation fails, it falls back to the normal path. Tested-on: D-Link DGE-550T Rev-A3

  2. Oct 15, 2026 · NIST NVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: net: dlink: handle copy_thresh allocation failure The driver did not handle failure of . If the allocation failed, dereferencing could lead to a NULL pointer dereference. This patch tries to allocate . If the allocation fails, it falls back to the normal path. Tested-on: D-Link DGE-550T Rev-A3

Sources

  • CVE.orgVulnerability recordCVE-2025-40053

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-40053

    30-day exploitation probability 0.6%

    first.org
  • NIST NVDVulnerability recordCVE-2025-40053

    In the Linux kernel, the following vulnerability has been resolved: net: dlink: handle copy_thresh allocation failure The driver did not handle failure of . If the allocation failed, dereferencing could lead to a NULL pointer derefer

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.