CVE-2025-71086

Kernel crash via invalid ROSE array index

Published Jan 13, 2026 · Updated Jan 13, 2026

Out-of-bounds array access in the Linux Kernel ROSE subsystem allows attackers to crash the kernel during network-device teardown. The rose_kill_by_device() function stores held sockets in a local array but dereferences array[cnt] on every iteration rather than the entry selected by the loop counter, producing an uninitialized or out-of-bounds socket pointer and leaking held references. Access to this path requires CAP_NET_ADMIN in the initial network namespace; unprivileged user namespaces cannot satisfy that requirement.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds array access in the Linux Kernel ROSE subsystem allows attackers to crash the kernel during network-device teardown. The rose_kill_by_device() function stores held sockets in a local array but dereferences array[cnt] on every iteration rather than the entry selected by the loop counter, producing an uninitialized or out-of-bounds socket pointer and leaking held references. Access to this path requires CAP_NET_ADMIN in the initial network namespace; unprivileged user namespaces cannot satisfy that requirement.

The record

CVE
CVE-2025-71086
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-129, T1499
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=12e5a4719c99d7f4104e7e962393dfb8baa1c591
  2. Affected versionversion=3e0d1585799d8a991eba9678f297fd78d9f1846e <1418c12cd3bba79dc56b57b61c99efe40f579981
  3. Affected versionversion=64b8bc7d5f1434c636a40bdcfcd42b278d1714be <6595beb40fb0ec47223d3f6058ee40354694c8e4
  4. Affected versionversion=64b8bc7d5f1434c636a40bdcfcd42b278d1714be <92d900aac3a5721fb54f3328f1e089b44a861c38
  5. Affected versionversion=64b8bc7d5f1434c636a40bdcfcd42b278d1714be <b409ba9e1e63ccf3ab4cc061e33c1f804183543e
  6. Affected versionversion=6.7
  7. Affected versionversion=b10265532df7bc3666bc53261b7f03f0fd14b1c9
  8. Affected versionversion=bd7de4734535140fda33240c2335a07fdab6f88e
  9. Affected versionversion=c0e527c532a07556ca44642f5873b002c44da22c
  10. Affected versionversion=ffced26692f83212aa09d0ece0213b23cc2f611d <9f6185a32496834d6980b168cffcccc2d6b17280

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linux Kernelversion=12e5a4719c99d7f4104e7e962393dfb8baa1c591; version=3e0d1585799d8a991eba9678f297fd78d9f1846e <1418c12cd3bba79dc56b57b61c99efe40f579981; version=64b8bc7d5f1434c636a40bdcfcd42b278d1714be <6595beb40fb0ec47223d3f6058ee40354694c8e4; version=64b8bc7d5f1434c636a40bdcfcd42b278d1714be <92d900aac3a5721fb54f3328f1e089b44a861c38; version=64b8bc7d5f1434c636a40bdcfcd42b278d1714be <b409ba9e1e63ccf3ab4cc061e33c1f804183543e; version=6.7; version=b10265532df7bc3666bc53261b7f03f0fd14b1c9; version=bd7de4734535140fda33240c2335a07fdab6f88e; version=c0e527c532a07556ca44642f5873b002c44da22c; version=ffced26692f83212aa09d0ece0213b23cc2f611d <9f6185a32496834d6980b168cffcccc2d6b17280

Published CVSS scores

7.8NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-129Improper Validation of Array Index
T1499Endpoint Denial of Service

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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