CVE-2026-97907Hinoki check available

Incorrect firmware parsing via stale return code

Published Sep 25, 2026 · Updated Sep 25, 2026

Uninitialized-value use in the Linux Realtek Bluetooth firmware parser causes incorrect length accounting on zero-key devices. rtlbt_parse_firmware_v2 exits its switch without assigning rc when it should skip a security section, then tests and adds the uninitialized or previous value. The condition requires format-v2 firmware and a device reporting key_id zero; the public record identifies no attacker-controlled path or concrete resulting impact.

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

Uninitialized-value use in the Linux Realtek Bluetooth firmware parser causes incorrect length accounting on zero-key devices. rtlbt_parse_firmware_v2 exits its switch without assigning rc when it should skip a security section, then tests and adds the uninitialized or previous value. The condition requires format-v2 firmware and a device reporting key_id zero; the public record identifies no attacker-controlled path or concrete resulting impact.

The record

CVE
CVE-2026-97907
Published
Sep 25, 2026
Updated
Sep 25, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
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

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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=6.4
  2. Affected versionversion=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <422f6547259654bae690713614c794dd1e2c0a0b
  3. Affected versionversion=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <83e3e515fd261600ed8491fb0a8bcdfb115c904e
  4. Affected versionversion=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <90f3a142b5f8596a565b8e080d18a8050be6edef
  5. Affected versionversion=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <c4249cf6e80b1bd62a6a409aaabe760fe025dac3

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=6.4; version=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <422f6547259654bae690713614c794dd1e2c0a0b; version=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <83e3e515fd261600ed8491fb0a8bcdfb115c904e; version=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <90f3a142b5f8596a565b8e080d18a8050be6edef; version=9a24ce5e29b15c4c6b0c89c04f9df6ce14addefa <c4249cf6e80b1bd62a6a409aaabe760fe025dac3

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)
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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