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Vulnerabilities

Vulnerability · CVE-2022-36879

An issue was discovered in the Linux kernel through 5.18.14.

Published Jul 27, 2022 · catalog updated Oct 14, 2026 · linux kernel

Check if you run it

No confirmed exploitation is on record for CVE-2022-36879. EPSS is 0.32%. Act only if a listed version of linux kernel is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.32%
Remediation
Advisory link
Affected products
cpe debian/debian linux · cpe linux/linux kernel · cpe netapp/a700s firmware · cpe netapp/active iq unified manager · cpe netapp/aff 8300 firmware · cpe netapp/aff 8700 firmware

An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

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.

  • cpe debian/debian linux10.0
  • cpe debian/debian linux11.0
  • cpe linux/linux kernelversion unspecified
  • cpe netapp/a700s firmwareversion unspecified
  • cpe netapp/active iq unified managerversion unspecified
  • cpe netapp/aff 8300 firmwareversion unspecified
  • cpe netapp/aff 8700 firmwareversion unspecified
  • cpe netapp/aff a400 firmwareversion unspecified
  • cpe netapp/e-series santricity os controllerversion unspecified
  • cpe netapp/fas 8300 firmwareversion unspecified
  • cpe netapp/fas 8700 firmwareversion unspecified
  • cpe netapp/hci bootstrap osversion unspecified

How to fix CVE-2022-36879

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-2022-36879. EPSS is 0.32%. Act only if a listed version of linux kernel is installed.

Which versions are affected?

Compare what you have installed with debian/debian linux 10.0; debian/debian linux 11.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.32%. 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. Jul 27, 2022 · NIST NVD

    Detected

    An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

  2. Oct 14, 2026 · NIST NVD

    Updated

    An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

Sources

  • CVE.orgVulnerability recordCVE-2022-36879

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-36879

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2022-36879

    An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 16, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.