# CVE-2024-20077: Denial of service in MT2731, MT6739, MT6761, MT6762, MT6763, MT6765, MT6767, MT6768, MT6769, MT6771, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788 > Remote attackers can cause a system crash in MediaTek modem firmware due to incorrect error handling, requiring no user interaction or privileges. - **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 1 Jul 2024 - **Updated:** 1 Aug 2024 - **Also known as:** A-338887097, ASB-A-338887097, GHSA-5rmp-w29x-xm84, MOLY01297807 ## What is CVE-2024-20077? CVE-2024-20077 is a high-severity denial of service vulnerability in MediaTek, Inc. MT2731, MT6739, MT6761, MT6762, MT6763, MT6765, MT6767, MT6768, MT6769, MT6771, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, published on 1 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description In Modem, there is a possible system crash due to incorrect error handling. This could lead to remote denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01297807; Issue ID: MSV-1482. Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) ## Which versions are affected by CVE-2024-20077? It affects 1 product. Products: Mediatek Lr12a. ## How do I fix CVE-2024-20077? Apply the vendor's patch. ## Is CVE-2024-20077 being exploited? There is no known exploitation of CVE-2024-20077 in the wild and no public exploit code. ## Other vulnerabilities in MediaTek, Inc. MT2731, MT6739, MT6761, MT6762, MT6763, MT6765, MT6767, MT6768, MT6769, MT6771, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788 - [CVE-2024-20154](https://insights.sbomify.com/CVE-2024-20154/): Memory corruption in MT2735, MT6767, MT6768, MT6769, MT6769K, MT6769S, MT6769T, MT6769Z, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6785U, MT6789, MT6833P, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6880, MT6880T, MT6880U, MT6883, MT6885, MT6889, MT6890, MT6891, MT6893, MT8666, MT8673, MT8675, MT8765, MT8766, MT8768, MT8771, MT8781, MT8786, MT8788, MT8788E, MT8789, MT8791T, MT8795T, MT8797, MT8798 (high 8.8) - [CVE-2024-20039](https://insights.sbomify.com/CVE-2024-20039/): Memory corruption in MT2731, MT2735, MT2737, MT3967, MT6297, MT6298, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6779, MT6781, MT6783, MT6785, MT6785T, MT6785U, MT6789, MT6813, MT6815, MT6833, MT6835, MT6853, MT6855, MT6873, MT6875, MT6875T, MT6877, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895T, MT6896, MT6897, MT6980, MT6980D, MT6983, MT6985, MT6986, MT6986D, MT6989, MT6990, MT8666, MT8667, MT8673, MT8675, MT8676, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8791, MT8791T, MT8792, MT8796, MT8797, MT8798 (high 8.8) - [CVE-2023-32840](https://insights.sbomify.com/CVE-2023-32840/): Memory corruption in MT2731, MT2735, MT6731, MT6739, MT6761, MT6762, MT6763, MT6765, MT6767, MT6768, MT6769, MT6769T, MT6769Z, MT6771, MT6771T, MT6813, MT6833, MT6833P, MT6835, MT6853, MT6853T, MT6855, MT6873, MT6875, MT6877, MT6877T, MT6878, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895T, MT6896, MT6897, MT6980, MT6980D, MT6983T, MT6983W, MT6983Z, MT6985, MT6985T, MT6989, MT6990, MT8666, MT8667, MT8673, MT8675, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, MT8789, MT8791, MT8791T, MT8797, MT8798 (high 8.4) - [CVE-2025-20727](https://insights.sbomify.com/CVE-2025-20727/): Memory corruption in MT2735, MT2737, MT6739, MT6761, MT6762, MT6762D, MT6762M, MT6763, MT6765, MT6765T, MT6767, MT6768, MT6769, MT6769K, MT6769S, MT6769T, MT6769Z, MT6771, MT6813, MT6833, MT6833P, MT6835, MT6835T, MT6853, MT6853T, MT6855, MT6855T, MT6873, MT6875, MT6875T, MT6877, MT6877T, MT6877TT, MT6878, MT6878M, MT6879, MT6880, MT6883, MT6885, MT6886, MT6889, MT6890, MT6891, MT6893, MT6895, MT6895TT, MT6896, MT6897, MT6899, MT6980, MT6980D, MT6983, MT6983T, MT6985, MT6985T, MT6989, MT6989T, MT6990, MT6991, MT8666, MT8667, MT8673, MT8675, MT8676, MT8678, MT8765, MT8766, MT8766R, MT8768, MT8771, MT8786, MT8788, MT8788E, MT8791, MT8791T, MT8792, MT8793, MT8795T, MT8797, MT8798, MT8863, MT8873, MT8883, MT8893 (high 8.1) - [CVE-2026-20434](https://insights.sbomify.com/CVE-2026-20434/): Memory corruption in MediaTek chipset (high 7.5) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2024-20077 and fix it if it is affected. What it is: CVE-2024-20077 is a high-severity denial of service vulnerability in MediaTek, Inc. MT2731, MT6739, MT6761, MT6762, MT6763, MT6765, MT6767, MT6768, MT6769, MT6771, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788, published on 1 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2024-20077 in the wild and no public exploit code. Affected product: MediaTek, Inc. MT2731, MT6739, MT6761, MT6762, MT6763, MT6765, MT6767, MT6768, MT6769, MT6771, MT8666, MT8667, MT8765, MT8766, MT8768, MT8781, MT8786, MT8788. 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-2024-20077/ (Markdown: https://insights.sbomify.com/CVE-2024-20077/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2024-20077 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-20077 - OSV: https://osv.dev/vulnerability/CVE-2024-20077 --- From sbomify Insights: https://insights.sbomify.com/CVE-2024-20077/ Summaries are generated and may contain mistakes; the official description above is the record.