{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-101309 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-101309 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-101309 is a high-severity vulnerability in FreeBSD, published on 15 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-2026-101309 and fix it if it is affected.\n\nWhat it is: CVE-2026-101309 is a high-severity vulnerability in FreeBSD, published on 15 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-2026-101309 in the wild and no public exploit code.\n\nAffected product: FreeBSD. 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-2026-101309/ (Markdown: https://insights.sbomify.com/CVE-2026-101309/index.md)","id":"CVE-2026-101309","markdown":"https://insights.sbomify.com/CVE-2026-101309/index.md","name":"CVE-2026-101309","record":{"aliases":["GHSA-6jf6-r4g2-3vh5"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"FreeBSD bhyve hypervisor","requires_auth":"low_privilege","summary":"A race condition in the bhyve xHCI device model allows a malicious guest to crash the host or execute arbitrary code in the host userspace context.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"freebsd","cpe":[],"cvss":{"score":7,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"The xHCI (USB 3) device model did not validate or save the event ring size provided by the guest.  The size was re-read from guest memory on each use, and Transfer Request Block (TRB) fields were loaded without protection against concurrent modification by the guest.  This race condition could be triggered by a guest running malicious, privileged code.\n\nA malicious guest can crash the bhyve process or potentially execute arbitrary code in the host userspace context running the virtual machine, subject to bhyve's Capsicum sandbox.","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":"Multiple vulnerabilities in bhyve device models","id":"CVE-2026-101309","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Multiple vulnerabilities in bhyve device models","id":"CVE-2026-101310"},"packages":[],"prev":{"headline":"TOCTOU race between sound(4) buffer resizing and mmap","id":"CVE-2026-101308"},"products":["FreeBSD"],"published":"2026-10-15","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":"2026-10-16","vendors":["FreeBSD"]},"summary":"A race condition in the bhyve xHCI device model allows a malicious guest to crash the host or execute arbitrary code in the host userspace context.","url":"https://insights.sbomify.com/CVE-2026-101309/"}