CVE-2026-68088

Service interruption via unchecked RNDIS query offsets

Published Aug 10, 2026 · Updated Aug 10, 2026

Out-of-bounds access in Linux kernel RNDIS gadget support allows physically proximate attackers to interrupt service with a malformed query. The rndis_query_response() function adds InformationBufferOffset plus eight to the request base and passes that pointer and an unchecked InformationBufferLength to gen_ndis_query_resp(). Reachability requires physical USB access to a system configured as an RNDIS gadget; published evidence does not establish a crash mode beyond limited availability impact.

CVSS severity2.4
Low
EPSS probability0.18%
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 access in Linux kernel RNDIS gadget support allows physically proximate attackers to interrupt service with a malformed query. The rndis_query_response() function adds InformationBufferOffset plus eight to the request base and passes that pointer and an unchecked InformationBufferLength to gen_ndis_query_resp(). Reachability requires physical USB access to a system configured as an RNDIS gadget; published evidence does not establish a crash mode beyond limited availability impact.

The record

CVE
CVE-2026-68088
Published
Aug 10, 2026
Updated
Aug 10, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
physical
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 10, 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=0 <5.10.261
  2. Affected versionversion=0 <5.15.212
  3. Affected versionversion=0 <6.1.178
  4. Affected versionversion=0 <6.12.96
  5. Affected versionversion=0 <6.18.39
  6. Affected versionversion=0 <6.6.145
  7. Affected versionversion=0 <7.1.4
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <585921866d2d7d65d4b0d89927c78f784668cf5f
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <95f90eea070837f7c72207d5520f805bdefc3bc5
  10. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b09716040f3fa4a252eeda3ceb5295ea0e39c1fb
  11. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bb2b4402b4571b0c989b977779f7be01107ca425
  12. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <caea8b120604312bab2bfeb1a972f9cd17019e93
  13. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e01e7814b4223560eab0513b7c15b8c82bdc83f3
  14. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <efcf4e4eeea0d69d8da72a7bc5cbd49b6192260e
  15. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f5870777458d8be65d7cd08bc750a03f17998350

What conditions does exploitation require?

Attack vectorphysical
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0 <5.10.261; version=0 <5.15.212; version=0 <6.1.178; version=0 <6.12.96; version=0 <6.18.39; version=0 <6.6.145; version=0 <7.1.4; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <585921866d2d7d65d4b0d89927c78f784668cf5f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <95f90eea070837f7c72207d5520f805bdefc3bc5; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b09716040f3fa4a252eeda3ceb5295ea0e39c1fb; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <bb2b4402b4571b0c989b977779f7be01107ca425; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <caea8b120604312bab2bfeb1a972f9cd17019e93; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e01e7814b4223560eab0513b7c15b8c82bdc83f3; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <efcf4e4eeea0d69d8da72a7bc5cbd49b6192260e; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f5870777458d8be65d7cd08bc750a03f17998350

Published CVSS scores

2.4Amazon LinuxCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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

Weakness, pattern, technique

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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