# CVE-2018-13927: Security feature bypass in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking > Attackers can load debug policies with invalid signatures when debug functionality is disabled, bypassing security controls in Qualcomm Snapdragon firmware. - **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** No - **Published:** 22 Jul 2019 - **Updated:** 5 Aug 2024 - **Also known as:** GHSA-qm93-wprh-qr6p ## What is CVE-2018-13927? CVE-2018-13927 is a high-severity vulnerability in Qualcomm Mdm9206 Firmware, published on 22 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description Debug policy with invalid signature can be loaded when the debug policy functionality is disabled by using the parallel image loading in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking in MDM9206, MDM9607, MDM9650, MDM9655, MSM8996AU, QCS404, QCS605, SD 410/12, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM630, SDM660, SXR1130 Weakness: CWE-287 (Improper Authentication) ## Which versions are affected by CVE-2018-13927? It affects 24 products. Products: Qualcomm Mdm9206 Firmware, Qualcomm Mdm9607 Firmware, Qualcomm Mdm9650 Firmware, Qualcomm Mdm9655 Firmware, Qualcomm Msm8996au Firmware, Qualcomm Qcs404 Firmware, Qualcomm Qcs605 Firmware, Qualcomm Sd 410 Firmware, Qualcomm Sd 412 Firmware, Qualcomm Sd 636 Firmware, Qualcomm Sd 670 Firmware, Qualcomm Sd 710 Firmware, Qualcomm Sd 712 Firmware, Qualcomm Sd 820 Firmware, Qualcomm Sd 820a Firmware, Qualcomm Sd 835 Firmware, Qualcomm Sd 845 Firmware, Qualcomm Sd 850 Firmware, Qualcomm Sd 855 Firmware, Qualcomm Sd 8cx Firmware and 4 more. ## How do I fix CVE-2018-13927? No fix has been published for CVE-2018-13927 yet. Limit exposure of the affected software until one is available. ## Is CVE-2018-13927 being exploited? There is no known exploitation of CVE-2018-13927 in the wild and no public exploit code. ## Other vulnerabilities in Qualcomm Mdm9206 Firmware - [CVE-2016-10394](https://insights.sbomify.com/CVE-2016-10394/): Improper Authentication in Core (critical 9.8) - [CVE-2019-10522](https://insights.sbomify.com/CVE-2019-10522/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8) - [CVE-2019-10528](https://insights.sbomify.com/CVE-2019-10528/): Use after free in Snapdragon Auto, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8) - [CVE-2019-10533](https://insights.sbomify.com/CVE-2019-10533/): Memory corruption in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8) - [CVE-2019-10534](https://insights.sbomify.com/CVE-2019-10534/): Null dereference in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables (critical 9.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2018-13927 and fix it if it is affected. What it is: CVE-2018-13927 is a high-severity vulnerability in Qualcomm Mdm9206 Firmware, published on 22 Jul 2019. 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-2018-13927 in the wild and no public exploit code. Affected product: Qualcomm Mdm9206 Firmware. 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-2018-13927/ (Markdown: https://insights.sbomify.com/CVE-2018-13927/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2018-13927 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-13927 - OSV: https://osv.dev/vulnerability/CVE-2018-13927 --- From sbomify Insights: https://insights.sbomify.com/CVE-2018-13927/ Summaries are generated and may contain mistakes; the official description above is the record.