{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-23789 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-23789 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-23789 is a high-severity use after free vulnerability in Samsung Exynos 850 firmware, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-23789 and fix it if it is affected.\n\nWhat it is: CVE-2026-23789 is a high-severity use after free vulnerability in Samsung Exynos 850 firmware, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-23789 in the wild and no public exploit code.\n\nAffected product: Samsung Exynos 850 firmware. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. 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.\n2. 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.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-23789/ (Markdown: https://insights.sbomify.com/CVE-2026-23789/index.md)","id":"CVE-2026-23789","markdown":"https://insights.sbomify.com/CVE-2026-23789/index.md","name":"CVE-2026-23789","record":{"aliases":["GHSA-9jqf-p4p9-5v4p"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Exynos MFC driver","requires_auth":"low_privilege","summary":"A double-free in the Exynos MFC encoder driver allows attackers to corrupt kernel memory and potentially execute arbitrary code on affected Samsung devices.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-415","name":"Double Free"}],"description":"An issue was discovered in MFC in Samsung Mobile Processor and Wearable Processor Exynos 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 2600, 1680, W920, W930, and W1000. A double-free vulnerability in the Exynos MFC encoder driver (due to improper cleanup of dma_buf references during error handling) leads to kernel memory corruption and potential arbitrary code execution.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Use after free in Exynos 850 firmware","id":"CVE-2026-23789","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Use after free in Exynos 1280 firmware","id":"CVE-2026-23790"},"packages":[],"prev":{"headline":"Memory corruption in Exynos 1280 firmware","id":"CVE-2026-23788"},"products":["Exynos 850 firmware"],"published":"2026-09-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-16","vendors":["Samsung"]},"summary":"A double-free in the Exynos MFC encoder driver allows attackers to corrupt kernel memory and potentially execute arbitrary code on affected Samsung devices.","url":"https://insights.sbomify.com/CVE-2026-23789/"}