{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-80765 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-80765 is a denial of service vulnerability in Linux, published on 4 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-2026-80765 and fix it if it is affected.\n\nWhat it is: CVE-2026-80765 is a denial of service vulnerability in Linux, published on 4 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-2026-80765 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2026-80765/ (Markdown: https://insights.sbomify.com/CVE-2026-80765/index.md)","id":"CVE-2026-80765","markdown":"https://insights.sbomify.com/CVE-2026-80765/index.md","name":"CVE-2026-80765","record":{"aliases":["AZL-99615","BELL-CVE-2026-80765","DEBIAN-CVE-2026-80765","GHSA-cj68-x55r-245c","UBUNTU-CVE-2026-80765"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"high_privilege","summary":"A malicious Hyper-V host can crash a Linux guest by sending malformed HID device info messages with oversized descriptor lengths.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nHID: hyperv: validate initial device info bounds\n\nThe Hyper-V synthetic HID host supplies SYNTH_HID_INITIAL_DEVICE_INFO\nmessages that contain a HID descriptor followed by the report descriptor\nbytes. mousevsc_on_receive_device_info() trusts bLength and\nwDescriptorLength without checking that the received packet contains both\nbyte ranges.\n\nA malformed host or backend message can therefore make the guest read\npast the received VMBus packet while copying the report descriptor. Pass\nthe received initial-device-info size into the parser and reject\ndescriptor lengths that exceed the packet.\n\nImpact: A malicious Hyper-V host or backend can crash a guest by sending\na short initial device-info message with an oversized HID report\ndescriptor length.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"HID: hyperv: validate initial device info bounds","id":"CVE-2026-80765","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":9,"next":{"headline":"HID: uclogic: fix use-after-free of inrange_timer on remove","id":"CVE-2026-80766"},"packages":[],"prev":{"headline":"Bluetooth: hci_event: fix LE list UAF on reset","id":"CVE-2026-80764"},"products":["Linux"],"published":"2026-09-04","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A malicious Hyper-V host can crash a Linux guest by sending malformed HID device info messages with oversized descriptor lengths.","url":"https://insights.sbomify.com/CVE-2026-80765/"}