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Vulnerabilities

Vulnerability · CVE-2026-23171

In the Linux kernel, the following vulnerability has been resolved: bonding: fix use-after-free due to enslave fail after slave array update Fix a use-after-free which happens due

Published Feb 14, 2026 · catalog updated Oct 30, 2026 · Linux Linux

Last checked Nov 5, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-23171. EPSS is 0.17%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.17%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e <c6ae2b978001065ca0e1d33d5cbf949efeff879e

In the Linux kernel, the following vulnerability has been resolved: bonding: fix use-after-free due to enslave fail after slave array update Fix a use-after-free which happens due to enslave failure after the new slave has been added to the array. Since the new slave can be used for Tx immediately, we can use it after it has been freed by the enslave error cleanup path which frees the allocated slave memory. Slave update array is supposed to be called last when further enslave failures are not expected. Move it after xdp setup to avoid any problems. It is very easy to reproduce the problem wit

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e <c6ae2b978001065ca0e1d33d5cbf949efeff879e9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e <c6ae2b978001065ca0e1d33d5cbf949efeff879e

How to fix CVE-2026-23171

  • Upgrade

    CVE-2026-23171 lists a fix boundary at c6ae2b978001065ca0e1d33d5cbf949efeff879e. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e <c6ae2b978001065ca0e1d33d5cbf949efeff879e

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

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-2026-23171. EPSS is 0.17%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e <c6ae2b978001065ca0e1d33d5cbf949efeff879e 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e <c6ae2b978001065ca0e1d33d5cbf949efeff879e. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.17%. 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. Feb 14, 2026 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: bonding: fix use-after-free due to enslave fail after slave array update Fix a use-after-free which happens due to enslave failure after the new slave has been added to the array. Since the new slave can be used for Tx immediately, we can use it after it has been freed by the enslave error cleanup path which frees the allocated sl

  2. Oct 30, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: bonding: fix use-after-free due to enslave fail after slave array update Fix a use-after-free which happens due to enslave failure after the new slave has been added to the array. Since the new slave can be used for Tx immediately, we can use it after it has been freed by the enslave error cleanup path which frees the allocated sl

Sources

  • CVE.orgVulnerability recordCVE-2026-23171

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-23171

    30-day exploitation probability 0.17%

    first.org
  • EUVDVulnerability recordEUVD-2026-5867

    In the Linux kernel, the following vulnerability has been resolved: bonding: fix use-after-free due to enslave fail after slave array update Fix a use-after-free which happens due to enslave failure after the new slave has been added to the array. Since the new slave can be used

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 5, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 5, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 2, 2026