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Vulnerability · Published Oct 13, 2026 · Assigned by redhat

CVE-2026-105460Bluez: bluez: stack-based out-of-bounds read in btmon via unvalidated num_keys in return_link_keys_evt()

Medium 5.5

In plain English

A medium-severity out-of-bounds read in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.1%top 98.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12bluezno fix listedDEBIAN-CVE-2026-105460
Debian:13bluezno fix listedDEBIAN-CVE-2026-105460
Debian:14bluezno fix listedDEBIAN-CVE-2026-105460
Ubuntu:22.04:LTSbluezno fix listedUBUNTU-CVE-2026-105460
Ubuntu:24.04:LTSbluezno fix listedUBUNTU-CVE-2026-105460
Ubuntu:26.04:LTSbluezno fix listedUBUNTU-CVE-2026-105460
Ubuntu:26.10bluezno fix listedUBUNTU-CVE-2026-105460

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References