CVE-2026-97560Network attack vectorHinoki check available

Kernel over-read via mismatched copy length

Published Sep 25, 2026 · Updated Sep 25, 2026

An out-of-bounds read in the Linux SMB client allows remote attackers controlling an SMB share to over-read a kernel buffer by one byte. In smb2_parse_native_symlink(), memcpy skips the leading separator with smb_target+1 but still copies smb_target_len bytes, so the source range extends one byte beyond the allocation. The path requires a client to access a share-root-relative native symlink supplied by the SMB server; the demonstrated result is a KASAN slab-out-of-bounds report.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

An out-of-bounds read in the Linux SMB client allows remote attackers controlling an SMB share to over-read a kernel buffer by one byte. In smb2_parse_native_symlink(), memcpy skips the leading separator with smb_target+1 but still copies smb_target_len bytes, so the source range extends one byte beyond the allocation. The path requires a client to access a share-root-relative native symlink supplied by the SMB server; the demonstrated result is a KASAN slab-out-of-bounds report.

The record

CVE
CVE-2026-97560
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=430afd3edabf942a908570e5a41414bb455f15f8
  2. Affected versionversion=6.11.11 <6.12
  3. Affected versionversion=6.12.2 <6.12.111
  4. Affected versionversion=6.13
  5. Affected versionversion=6.6.64 <6.7
  6. Affected versionversion=723f4ef90452aa629f3d923e92e0449d69362b1d <2a302fdbaf7dd00d285303c94af8f48321c22993
  7. Affected versionversion=723f4ef90452aa629f3d923e92e0449d69362b1d <cb26524ef4ac28fcfa554c0656e8dc412c38a8ff
  8. Affected versionversion=723f4ef90452aa629f3d923e92e0449d69362b1d <d1f173d28e964ba2c3c4ebe7491d594dc8c77a40
  9. Affected versionversion=c9280c017ea13ff8678ef4f1ea78a4b683292e8b
  10. Affected versionversion=fc5a409552be479715b147748f2f61b41b512976 <22a9d0a9ba0c89be57558c1aa80dc60a571dd89c

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=430afd3edabf942a908570e5a41414bb455f15f8; version=6.11.11 <6.12; version=6.12.2 <6.12.111; version=6.13; version=6.6.64 <6.7; version=723f4ef90452aa629f3d923e92e0449d69362b1d <2a302fdbaf7dd00d285303c94af8f48321c22993; version=723f4ef90452aa629f3d923e92e0449d69362b1d <cb26524ef4ac28fcfa554c0656e8dc412c38a8ff; version=723f4ef90452aa629f3d923e92e0449d69362b1d <d1f173d28e964ba2c3c4ebe7491d594dc8c77a40; version=c9280c017ea13ff8678ef4f1ea78a4b683292e8b; version=fc5a409552be479715b147748f2f61b41b512976 <22a9d0a9ba0c89be57558c1aa80dc60a571dd89c

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
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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