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CVE-2026-105460

Bluez: bluez: stack-based out-of-bounds read in btmon via unvalidated num_keys in return_link_keys_evt()

5.5 Medium

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth monitor tool when processing crafted HCI Return Link Keys events. A maliciously crafted btsnoop capture file can specify a large number of link keys that exceeds the actual packet data, causing btmon to read beyond the allocated buffer and crash.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.12%Unchanged since Oct 14, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.5

Bluez: bluez: stack-based out-of-bounds read in btmon via unvalidated num_keys in return_link_keys_evt()

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth monitor tool when processing crafted HCI Return Link Keys events. A maliciously crafted btsnoop capture file can specify a large number of link keys that exceeds the actual packet data, causing btmon to read beyond the allocated buffer and crash.

Record
CVE-2026-105460
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-06
EUVDEUVD-2026-98739 5.5

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth monitor tool when processing crafted HCI Return Link Keys events. A maliciously crafted btsnoop capture file can specify a large number of link keys that exceeds the actual packet data, causing btmon to read beyond the allocated buffer and crash.

Record
EUVD-2026-98739
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-06
GitHub AdvisoriesGHSA-hqj4-7q22-2hmj 5.5

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth...

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth monitor tool when processing crafted HCI Return Link Keys events. A maliciously crafted btsnoop capture file can specify a large number of link keys that exceeds the actual packet data, causing btmon to read beyond the allocated buffer and crash.

Record
GHSA-hqj4-7q22-2hmj
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
NVD 5.5

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth monitor tool when processing crafted HCI Return Link Keys events. A maliciously crafted btsnoop capture file can specify a large number of link keys that exceeds the actual packet data, causing btmon to read beyond the allocated buffer and crash.

Record
CVE-2026-105460
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-125
Updated
2026-11-06
OSVBELL-CVE-2026-105460 5.5
Record
BELL-CVE-2026-105460
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2026-105460 5.5

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth monitor tool when processing crafted HCI Return Link Keys events. A maliciously crafted btsnoop capture file can specify a large number of link keys that exceeds the actual packet data, causing btmon to read beyond the allocated buffer and crash.

Record
DEBIAN-CVE-2026-105460
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-07
OSVUBUNTU-CVE-2026-105460 5.5

A flaw was found in BlueZ. An out-of-bounds read vulnerability exists in the btmon Bluetooth monitor tool when processing crafted HCI Return Link Keys events. A maliciously crafted btsnoop capture file can specify a large number of link keys that exceeds the actual packet data, causing btmon to read beyond the allocated buffer and crash.

Record
UBUNTU-CVE-2026-105460
CVSS 3.1
5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
bluez
Alpaquita:23
 5.66-r1 and later None known
bluez
Alpaquita:25
 5.82-r0 and later None known
bluez
Alpaquita:stream
 5.66-r2 and later None known
bluez
Debian:12
 All versions, plus listed versions
5.66-15.66-1+deb12u15.66-1+deb12u25.68-15.68-2
Show 25 moreShow less
5.69-15.70-15.70-1.15.70-1.1~exp05.71-15.73-15.73-1.15.77-15.79-15.79-25.82-15.82-1.15.83-15.83-1~exp15.84-15.85-15.85-25.85-35.85-45.87-15.87-25.87-35.87-45.87-55.88-1
 None known
bluez
Debian:13
 All versions, plus listed versions
5.82-1.15.83-15.83-1~exp15.84-15.85-1
Show 9 moreShow less
5.85-25.85-35.85-45.87-15.87-25.87-35.87-45.87-55.88-1
 None known
bluez
Debian:14
 All versions, plus listed versions
5.82-1.15.83-15.83-1~exp15.84-15.85-1
Show 9 moreShow less
5.85-25.85-35.85-45.87-15.87-25.87-35.87-45.87-55.88-1
 None known
bluez
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
5.35-0ubuntu25.36-0ubuntu15.37-0ubuntu55.37-0ubuntu5.15.37-0ubuntu5.3
Show 6 moreShow less
5.37-0ubuntu5.3+esm15.37-0ubuntu5.3+esm25.37-0ubuntu5.3+esm35.37-0ubuntu5.3+esm45.37-0ubuntu5.3+esm55.37-0ubuntu5.3+esm6
 None known
bluez
Ubuntu:Pro:18.04:LTS
 All versions, plus listed versions
5.46-0ubuntu35.46-0ubuntu45.48-0ubuntu35.48-0ubuntu3.15.48-0ubuntu3.2
Show 10 moreShow less
5.48-0ubuntu3.35.48-0ubuntu3.45.48-0ubuntu3.55.48-0ubuntu3.65.48-0ubuntu3.75.48-0ubuntu3.85.48-0ubuntu3.95.48-0ubuntu3.9+esm15.48-0ubuntu3.9+esm25.48-0ubuntu3.9+esm3
 None known
bluez
Ubuntu:Pro:20.04:LTS
 All versions, plus listed versions
5.50-0ubuntu45.51-0ubuntu15.51-0ubuntu25.52-0ubuntu15.52-0ubuntu2
Show 14 moreShow less
5.53-0ubuntu15.53-0ubuntu25.53-0ubuntu35.53-0ubuntu3.15.53-0ubuntu3.25.53-0ubuntu3.35.53-0ubuntu3.45.53-0ubuntu3.55.53-0ubuntu3.65.53-0ubuntu3.75.53-0ubuntu3.85.53-0ubuntu3.95.53-0ubuntu3.9+esm15.53-0ubuntu3.9+esm2
 None known
bluez
Ubuntu:22.04:LTS
 All versions, plus listed versions
5.60-0ubuntu25.62-0ubuntu15.62-0ubuntu25.63-0ubuntu15.63-0ubuntu2
Show 6 moreShow less
5.64-0ubuntu15.64-0ubuntu1.15.64-0ubuntu1.35.64-0ubuntu1.45.64-0ubuntu1.55.64-0ubuntu1.6
 None known
bluez
Ubuntu:24.04:LTS
 All versions, plus listed versions
5.68-0ubuntu15.70-0ubuntu15.70-0ubuntu25.70-0ubuntu35.71-0ubuntu3
Show 13 moreShow less
5.71-1ubuntu25.71-1ubuntu35.72-0ubuntu15.72-0ubuntu35.72-0ubuntu45.72-0ubuntu55.72-0ubuntu5.15.72-0ubuntu5.35.72-0ubuntu5.45.72-0ubuntu5.55.72-0ubuntu5.65.72-0ubuntu5.75.72-0ubuntu5.8
 None known
bluez
Ubuntu:26.10
 All versions, plus listed versions
5.85-45.85-4ubuntu15.87-15.87-25.87-35.87-4
 None known
bluez
Ubuntu:26.04:LTS
 All versions, plus listed versions
5.83-1~exp15.84-15.85-15.85-25.85-3
Show 5 moreShow less
5.85-45.85-4ubuntu0.15.85-4ubuntu0.25.85-4ubuntu0.35.85-4ubuntu0.4
 None known

History

History
RecordedChangedSources
affectedEUVD, NVD, OSV
factsCVE List
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-105460 is a medium vulnerability (CVSS 5.5) in Red Hat Enterprise Linux 10, published October 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 1st percentile. No source names a fixed version.

References

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