ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-31431

Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability

Published Apr 22, 2026 · catalog updated Sep 8, 2026 · Linux Kernel

Patch now

CVE-2026-31431 is in the CISA known-exploited catalog, due May 15, 2026. Confirm Linux Kernel against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
High7.8
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
3.44%
Remediation
Remediation guidance
Affected products
cpe amazon/amazon linux · cpe linux/linux kernel · cpe opensuse/leap · cpe redhat/openshift container platform · cpe suse/caas platform · vendor Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly.

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 amazon/amazon linuxversion unspecified
  • cpe linux/linux kernel7.0
  • cpe opensuse/leap15.3
  • cpe redhat/openshift container platformversion unspecified
  • cpe suse/caas platform4.0
  • vendor Linux Kernelversion unspecified

How to fix CVE-2026-31431

What to do

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

Should you patch?

CVE-2026-31431 is in the CISA known-exploited catalog, due May 15, 2026. Confirm Linux Kernel against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with linux/linux kernel 7.0; suse/caas platform 4.0. "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-1288; CWE-669: Incorrect Resource Transfer Between Spheres. EPSS 3.44%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. 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. Apr 22, 2026 · Catalog

    Detected

    In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy

  2. May 1, 2026 · CISA KEV

    Known exploited

    "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  3. May 15, 2026 · CISA KEV

    Remediation due

    "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

  4. Sep 8, 2026 · Catalog

    Updated

    In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy

  5. Sep 8, 2026 · NIST NVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy

Sources

  • CISA KEVConfirmed exploitationCVE-2026-31431

    Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2026-31431

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-31431

    30-day exploitation probability 3.4%

    first.org
  • Metasploit ModulesPublic exploit moduleexploit_linux/local/cve_2026_31431_copy_fail

    Public module reference (excellent). Module source is not copied into this catalog.

    rapid7.com
  • NIST NVDVulnerability recordCVE-2026-31431

    In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the so

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2026-31431

    Linux Kernel contains an incorrect resource transfer between spheres vulnerability that could allow for privilege escalation.

    vulncheck.com

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.