How severe is CVE-2016-9804?

CVE-2016-9804 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2016-9804 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9804?

CVE-2016-9804 affects Bluez. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-9804?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2016-9804 published?

CVE-2016-9804 was published on 2016-12-03 and last updated on 2026-06-17.

CVE-2016-9804

CVE-2016-9804 is a medium-severity vulnerability in Bluez with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Bluez
Published: 2016-12-03
Last modified: 2026-06-17

Description

In BlueZ 5.42, a buffer overflow was observed in "commands_dump" function in "tools/parser/csr.c" source file. The issue exists because "commands" array is overflowed by supplied parameter due to lack of boundary checks on size of the buffer from frame "frm->ptr" parameter. This issue can be triggered by processing a corrupted dump file and will result in hcidump crash.

Frequently asked questions

What is CVE-2016-9804?: In BlueZ 5.42, a buffer overflow was observed in "commands_dump" function in "tools/parser/csr.c" source file. The issue exists because "commands" array is overflowed by supplied parameter due to lack of boundary checks on size of the buffer from frame "frm->ptr" parameter. This issue can be triggered by processing a corrupted dump file and will result in hcidump crash.
How severe is CVE-2016-9804?: CVE-2016-9804 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2016-9804 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9804?: CVE-2016-9804 affects Bluez. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-9804?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-9804 published?: CVE-2016-9804 was published on 2016-12-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:bluez:bluez:5.42:*:*:*:*:*:*:*

More vulnerabilities in Bluez

CVE-2021-43400 — Critical (CVSS 9.1): An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during…
CVE-2024-8805 — High (CVSS 8.8): BlueZ HID over GATT Profile Improper Access Control Remote Code Execution Vulnerability. This vulnerability allows…
CVE-2022-39177 — High (CVSS 8.8): BlueZ before 5.59 allows physically proximate attackers to cause a denial of service because malformed and invalid…
CVE-2022-39176 — High (CVSS 8.8): BlueZ before 5.59 allows physically proximate attackers to obtain sensitive information because profiles/audio/avrcp.c…
CVE-2022-0204 — High (CVSS 8.8): A heap overflow vulnerability was found in bluez in versions prior to 5.63. An attacker with local network access could…
CVE-2019-8922 — High (CVSS 8.8): A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. There isn't any check on whether there…

All CVEs affecting Bluez →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →