# CVE-2020-12321: Privilege escalation in Intel(R) Wireless Bluetooth(R) > An unauthenticated attacker with adjacent access can escalate privileges due to improper buffer restriction in Intel Wireless Bluetooth firmware. - **Severity:** High 8.8 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 12 Nov 2020 - **Updated:** 8 Oct 2026 - **Also known as:** CLSA-2023-1701284544, GHSA-mmx9-f32w-9hqf, OESA-2022-1779, RHSA-2020:5416, RHSA-2020:5479, RHSA-2021:0183, RHSA-2021:0339, RHSA-2022:7887, SUSE-SU-2020:3330-1, SUSE-SU-2020:3349-1, SUSE-SU-2020:3353-1, SUSE-SU-2020:3354-1, openSUSE-SU-2020:1960-1, openSUSE-SU-2020:1962-1 ## What is CVE-2020-12321? CVE-2020-12321 is a high-severity vulnerability in Intel(R) Wireless Bluetooth(R), published on 12 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description Improper buffer restriction in some Intel(R) Wireless Bluetooth(R) products before version 21.110 may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access. ## Which versions are affected by CVE-2020-12321? It affects 11 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `iwl100-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:39.31.5.1-80.el7_9 | | `iwl1000-firmware` | Red Hat:enterprise_linux:7::client | All versions | 1:39.31.5.1-80.el7_9 | | `iwl105-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:18.168.6.1-80.el7_9 | | `iwl135-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:18.168.6.1-80.el7_9 | | `iwl2000-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:18.168.6.1-80.el7_9 | | `iwl2030-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:18.168.6.1-80.el7_9 | | `iwl3160-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:25.30.13.0-80.el7_9 | | `iwl3945-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:15.32.2.9-80.el7_9 | | `iwl4965-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:228.61.2.24-80.el7_9 | | `iwl5000-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:8.83.5.1_1-80.el7_9 | | `iwl5150-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:8.24.2.2-80.el7_9 | | `iwl6000-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:9.221.4.1-80.el7_9 | | `iwl6000g2a-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:18.168.6.1-80.el7_9 | | `iwl6000g2b-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:18.168.6.1-80.el7_9 | | `iwl6050-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:41.28.5.1-80.el7_9 | | `iwl7260-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:25.30.13.0-80.el7_9 | | `linux-firmware` | Red Hat:enterprise_linux:7::client | All versions | 0:20200421-80.git78c0348.el7_9 | | `iwl100-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:39.31.5.1-80.el7_9 | | `iwl1000-firmware` | Red Hat:enterprise_linux:7::server | All versions | 1:39.31.5.1-80.el7_9 | | `iwl105-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:18.168.6.1-80.el7_9 | | `iwl135-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:18.168.6.1-80.el7_9 | | `iwl2000-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:18.168.6.1-80.el7_9 | | `iwl2030-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:18.168.6.1-80.el7_9 | | `iwl3160-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:25.30.13.0-80.el7_9 | | `iwl3945-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:15.32.2.9-80.el7_9 | | `iwl4965-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:228.61.2.24-80.el7_9 | | `iwl5000-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:8.83.5.1_1-80.el7_9 | | `iwl5150-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:8.24.2.2-80.el7_9 | | `iwl6000-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:9.221.4.1-80.el7_9 | | `iwl6000g2a-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:18.168.6.1-80.el7_9 | | `iwl6000g2b-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:18.168.6.1-80.el7_9 | | `iwl6050-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:41.28.5.1-80.el7_9 | | `iwl7260-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:25.30.13.0-80.el7_9 | | `linux-firmware` | Red Hat:enterprise_linux:7::server | All versions | 0:20200421-80.git78c0348.el7_9 | | `iwl100-firmware` | Red Hat:enterprise_linux:7::workstation | All versions | 0:39.31.5.1-80.el7_9 | | `iwl1000-firmware` | Red Hat:enterprise_linux:7::workstation | All versions | 1:39.31.5.1-80.el7_9 | | `iwl105-firmware` | Red Hat:enterprise_linux:7::workstation | All versions | 0:18.168.6.1-80.el7_9 | | `iwl135-firmware` | Red Hat:enterprise_linux:7::workstation | All versions | 0:18.168.6.1-80.el7_9 | | `iwl2000-firmware` | Red Hat:enterprise_linux:7::workstation | All versions | 0:18.168.6.1-80.el7_9 | | `iwl2030-firmware` | Red Hat:enterprise_linux:7::workstation | All versions | 0:18.168.6.1-80.el7_9 | Products: Intel Dual Band Wireless-Ac 3165 Firmware, Intel Dual Band Wireless-Ac 3168 Firmware, Intel Dual Band Wireless-Ac 8260 Firmware, Intel Dual Band Wireless-Ac 8265 Firmware, Intel Wi-Fi 6 Ax200 Firmware, Intel Wi-Fi 6 Ax201 Firmware, Intel Wireless-Ac 9260 Firmware, Intel Wireless-Ac 9461 Firmware, Intel Wireless-Ac 9462 Firmware, Intel Wireless-Ac 9560 Firmware, Intel Wireless 7265 \(Rev D\) Firmware. ## How do I fix CVE-2020-12321? Upgrade to a fixed version. ## Is CVE-2020-12321 being exploited? There is no known exploitation of CVE-2020-12321 in the wild and no public exploit code. ## Other vulnerabilities in Intel(R) Wireless Bluetooth(R) - [CVE-2019-11152](https://insights.sbomify.com/CVE-2019-11152/): Memory corruption in Intel(R) WIFI Drivers and Intel(R) PROSet/Wireless WiFi Software extension DLL (high 8.8) - [CVE-2021-33847](https://insights.sbomify.com/CVE-2021-33847/): Memory corruption in Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products (high 7.8) - [CVE-2019-11151](https://insights.sbomify.com/CVE-2019-11151/): Memory corruption in Intel(R) WIFI Drivers and Intel(R) PROSet/Wireless WiFi Software extension DLL (high 7.8) - [CVE-2021-23179](https://insights.sbomify.com/CVE-2021-23179/): Information disclosure in Intel(R) Wireless Bluetooth(R) and Killer(TM) Bluetooth(R) products (high 7.1) - [CVE-2022-28667](https://insights.sbomify.com/CVE-2022-28667/): Memory corruption in Intel(R) PROSet/Wireless WiFi software (medium 6.5) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2020-12321 and fix it if it is affected. What it is: CVE-2020-12321 is a high-severity vulnerability in Intel(R) Wireless Bluetooth(R), published on 12 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2020-12321 in the wild and no public exploit code. Affected product: Intel(R) Wireless Bluetooth(R). No package-level version data is available, so check the vendor advisory linked from the reference page. Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2020-12321/ (Markdown: https://insights.sbomify.com/CVE-2020-12321/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12321 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12321 - OSV: https://osv.dev/vulnerability/CVE-2020-12321 --- From sbomify Insights: https://insights.sbomify.com/CVE-2020-12321/ Summaries are generated and may contain mistakes; the official description above is the record.