{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-109587 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-109587 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-109587 is a critical missing authorization vulnerability in FreeRTOS-Kernel, published on 16 Oct 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-2026-109587 and fix it if it is affected.\n\nWhat it is: CVE-2026-109587 is a critical missing authorization vulnerability in FreeRTOS-Kernel, published on 16 Oct 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-2026-109587 in the wild and no public exploit code.\n\nAffected product: FreeRTOS-Kernel. 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-2026-109587/ (Markdown: https://insights.sbomify.com/CVE-2026-109587/index.md)","id":"CVE-2026-109587","markdown":"https://insights.sbomify.com/CVE-2026-109587/index.md","name":"CVE-2026-109587","record":{"aliases":["GHSA-pv9j-rq42-3fjc"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["privilege_escalation","data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"FreeRTOS kernel","requires_auth":"low_privilege","summary":"An unprivileged task can read and write privileged kernel memory via a buffer argument in MPU-enabled builds, requiring an upgrade to fix.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"AMZN","cpe":[],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Incorrect authorization in the Arm Cortex-R82 (Armv8-R AArch64) MPU port in FreeRTOS-Kernel V11.3.0 and V11.3.1 might allow an unprivileged task on MPU-enabled builds to read and write privileged kernel memory outside the regions assigned to it, via a buffer argument passed to an MPU system call.\n\nTo remediate this issue, users should upgrade to version V11.3.2 or later.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Incorrect authorization in the Arm Cortex-R82 MPU port in FreeRTOS-Kernel","id":"CVE-2026-109587","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Numeric truncation in the MPU buffer authorization check in FreeRTOS-Kernel","id":"CVE-2026-109588"},"packages":[],"prev":{"headline":"HTTP/2 cookie crumb join expands a small HPACK header block into an unbounded allocation in Bandit","id":"CVE-2026-109584"},"products":["FreeRTOS-Kernel"],"published":"2026-10-16","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":"2026-10-20","vendors":["FreeRTOS"]},"summary":"An unprivileged task can read and write privileged kernel memory via a buffer argument in MPU-enabled builds, requiring an upgrade to fix.","url":"https://insights.sbomify.com/CVE-2026-109587/"}