CVE-2026-98600Hinoki check available

Data injection via short-frame header misparsing

Published Oct 18, 2026 · Updated Oct 18, 2026

Improper length checks in Linux Bluetooth RFCOMM allow attackers to inject header bytes as payload or control commands via short frames. The rfcomm_recv_frame() function accepts an undersized extended-length frame and ignores a failed skb_pull(), leaving header bytes for downstream processing. Exploitation requires delivery to the Bluetooth RFCOMM receive path and a valid frame check sequence; authentication requirements and consequences beyond misparsing are undocumented.

CVSS severityUnavailable
Unscored
EPSS probability0.18%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper length checks in Linux Bluetooth RFCOMM allow attackers to inject header bytes as payload or control commands via short frames. The rfcomm_recv_frame() function accepts an undersized extended-length frame and ignores a failed skb_pull(), leaving header bytes for downstream processing. Exploitation requires delivery to the Bluetooth RFCOMM receive path and a valid frame check sequence; authentication requirements and consequences beyond misparsing are undocumented.

The record

CVE
CVE-2026-98600
Published
Oct 18, 2026
Updated
Oct 18, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
adjacent
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 18, 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?

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  1. Affected versionversion=30d1d9f3495463f7c026e4c553127f79b486fcd6 <c25587fa26761e623198b4f47151fe79d09ccde6
  2. Affected versionversion=3829af5fab5a22405bf1e7d69068c2ec0fce46ca <97711b964877242933484989224a3c4c5d88a5ee
  3. Affected versionversion=6.12.111 <6.12.112
  4. Affected versionversion=6.18.53 <6.18.55
  5. Affected versionversion=67dc3b40fae71b6b11c71e7ff69bac0758818c05 <71ccacde407b7d8f0ef48974a0d2524602fd5c44
  6. Affected versionversion=7.2
  7. Affected versionversion=b161eacd7fa4a2d765724b5504ac6cc388e48f80 <7a1781a2f3a9667b3065d402d1f11986a2363e08
  8. Affected versionversion=b230e5bf501c5edaf2eb0991cb862ac142031d4b <6d91041bb38b97e2feb625123cc0529d7b83a0e1
  9. Affected versionversion=b230e5bf501c5edaf2eb0991cb862ac142031d4b <9240fc1f2cde5331c61608da21b00394602ca762
  10. Affected versionversion=bbc310caa2b6bf5fe42896ba27da0fbc12e4ac51 <be00deee60044ffa820f9436415caeb665b2cda0
  11. Affected versionversion=fb40eda15122f6b780228639c1ead6820340ff54 <76876fd26569302d26d91cbe8b75fa8e66cf8969

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=30d1d9f3495463f7c026e4c553127f79b486fcd6 <c25587fa26761e623198b4f47151fe79d09ccde6; version=3829af5fab5a22405bf1e7d69068c2ec0fce46ca <97711b964877242933484989224a3c4c5d88a5ee; version=6.12.111 <6.12.112; version=6.18.53 <6.18.55; version=67dc3b40fae71b6b11c71e7ff69bac0758818c05 <71ccacde407b7d8f0ef48974a0d2524602fd5c44; version=7.2; version=b161eacd7fa4a2d765724b5504ac6cc388e48f80 <7a1781a2f3a9667b3065d402d1f11986a2363e08; version=b230e5bf501c5edaf2eb0991cb862ac142031d4b <6d91041bb38b97e2feb625123cc0529d7b83a0e1; version=b230e5bf501c5edaf2eb0991cb862ac142031d4b <9240fc1f2cde5331c61608da21b00394602ca762; version=bbc310caa2b6bf5fe42896ba27da0fbc12e4ac51 <be00deee60044ffa820f9436415caeb665b2cda0; version=fb40eda15122f6b780228639c1ead6820340ff54 <76876fd26569302d26d91cbe8b75fa8e66cf8969

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)
Vectoradjacent
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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