{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-74681 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-74681 is a vulnerability in Linux, published on 22 Aug 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-2026-74681 and fix it if it is affected.\n\nWhat it is: CVE-2026-74681 is a vulnerability in Linux, published on 22 Aug 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-2026-74681 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-2026-74681/ (Markdown: https://insights.sbomify.com/CVE-2026-74681/index.md)","id":"CVE-2026-74681","markdown":"https://insights.sbomify.com/CVE-2026-74681/index.md","name":"CVE-2026-74681","record":{"aliases":["BELL-CVE-2026-74681","DEBIAN-CVE-2026-74681","GHSA-c35q-c6r4-9764","UBUNTU-CVE-2026-74681"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB driver","requires_auth":"none","summary":"A logic error in the Linux kernel USB IO driver compares buffer sizes incorrectly, potentially allowing buffer over-reads or denial of service via crafted USB messages.","user_interaction":"not_required","vuln_class":"integer_overflow"},"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\nusb: misc: usbio: check ibuf_len against rxbuf_len in bulk msg\n\nibuf_len is the bulk IN (receive) buffer size, but the EMSGSIZE check\nin usbio_bulk_msg() compares it against txbuf_len — the bulk OUT\nendpoint size.  Both are taken independently from different endpoints\nin usbio_probe(), so the check is wrong when they differ.\n\nUse rxbuf_len for the IN direction.  This matches the buffer that\nactually holds the response data.","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":"usb: misc: usbio: check ibuf_len against rxbuf_len in bulk msg","id":"CVE-2026-74681","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"ALSA: usb-audio: fix OOB write on Type II inbound URBs","id":"CVE-2026-74682"},"packages":[],"prev":{"headline":"usb: atm: cxacru: properly kill rcv_urb on error in cxacru_cm()","id":"CVE-2026-74680"},"products":["Linux"],"published":"2026-08-22","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":"2026-08-22","vendors":["Linux"]},"summary":"A logic error in the Linux kernel USB IO driver compares buffer sizes incorrectly, potentially allowing buffer over-reads or denial of service via crafted USB messages.","url":"https://insights.sbomify.com/CVE-2026-74681/"}