CVE-2026-31534

No confirmed security impact

Published Apr 24, 2026 · Updated Apr 24, 2026

Linux Kernel CVE-2026-31534 is a rejected record and no longer identifies a confirmed vulnerability in any release. The withdrawn report described send_done in fs/smb/client/smbdirect.c mishandling completions for unsignaled SMB Direct sends after a broken connection. The Linux CNA removed the applicability and patch references, so no attacker gate or security consequence remains attributable to this identifier.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Linux Kernel CVE-2026-31534 is a rejected record and no longer identifies a confirmed vulnerability in any release. The withdrawn report described send_done in fs/smb/client/smbdirect.c mishandling completions for unsignaled SMB Direct sends after a broken connection. The Linux CNA removed the applicability and patch references, so no attacker gate or security consequence remains attributable to this identifier.

The record

CVE
CVE-2026-31534
Published
Apr 24, 2026
Updated
Apr 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Apr 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <16c8be3d55441287ddd334e25df4cc376450dec9
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <86d9742c3f7ed7eba677517c80b4597822750e65
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cf74fcdc43b322b6188a0750b5ee79e38be6d078

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <16c8be3d55441287ddd334e25df4cc376450dec9; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <86d9742c3f7ed7eba677517c80b4597822750e65; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cf74fcdc43b322b6188a0750b5ee79e38be6d078

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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