EUVD-2026-66134
GHSA-822r-m33h-gr5v
Severity by source
AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack path is local D-Bus IPC, not Bluetooth radio adjacency, so AV:L is more accurate; PR:L reflects required authenticated local session; impact is availability-only crash.
Primary rating from Vendor (redhat).
CVSS VectorVendor: redhat
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
BlueZ sdp-xml.c type confusion via RegisterProfile(ServiceRecord) can crash bluetoothd (local DoS): a crafted nested ServiceRecord can corrupt the SDP XML parser stack so scalar union data is treated as a sequence pointer, allowing a local caller to crash bluetoothd.
AnalysisAI
Type confusion in BlueZ's SDP XML parser (sdp-xml.c) allows a low-privileged local caller to crash the bluetoothd daemon by submitting a crafted nested ServiceRecord via the RegisterProfile() D-Bus API. The parser stack is corrupted so scalar union data is misread as a sequence pointer, causing an invalid dereference and process termination - a local denial-of-service with no confidentiality or integrity impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local, low-privilege account on the target Linux system with D-Bus access sufficient to call the bluetoothd RegisterProfile() method - confirmed by CVSS PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The NVD-assigned CVSS 3.1 score of 5.7 Medium (AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) overstates the network adjacency of the attack surface: the attack path goes through the local D-Bus IPC interface, not over a Bluetooth radio link, which aligns better with AV:L rather than AV:A. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A low-privileged local user on a Linux system calls bluetoothd's RegisterProfile() D-Bus method with a specially constructed nested ServiceRecord XML payload. The malformed nesting causes the SDP XML parser in sdp-xml.c to corrupt its internal stack and misinterpret a scalar union value as a sequence pointer. … |
| Remediation | No exact patched version was specified in the available input data; a vendor-released patch has not been independently confirmed at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same technique Memory Corruption
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External POC / Exploit Code
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