{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63897 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-63897 is a vulnerability in Linux, published on 19 Jul 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-2026-63897 and fix it if it is affected.\n\nWhat it is: CVE-2026-63897 is a vulnerability in Linux, published on 19 Jul 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-2026-63897 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-2026-63897/ (Markdown: https://insights.sbomify.com/CVE-2026-63897/index.md)","id":"CVE-2026-63897","markdown":"https://insights.sbomify.com/CVE-2026-63897/index.md","name":"CVE-2026-63897","record":{"aliases":["BELL-CVE-2026-63897","DEBIAN-CVE-2026-63897","GHSA-mjxg-c55q-m7j2","ROOT-OS-UBUNTU-2204-CVE-2026-63897","UBUNTU-CVE-2026-63897"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB driver","requires_auth":"none","summary":"A missing sanity check in the Linux kernel's mct_u232 USB serial driver allows local attackers to leak uninitialized kernel memory to user space.","user_interaction":"not_required","vuln_class":"information_disclosure"},"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: serial: mct_u232: fix missing interrupt-in transfer sanity check\n\nAdd the missing sanity check on the size of interrupt-in transfers to\navoid parsing stale or uninitialised slab data (and leaking it to user\nspace).","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: serial: mct_u232: fix missing interrupt-in transfer sanity check","id":"CVE-2026-63897","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"USB: serial: mct_u232: fix memory corruption with small endpoint","id":"CVE-2026-63898"},"packages":[],"prev":{"headline":"usb: gadget: composite: fix integer underflow in WebUSB GET_URL handling","id":"CVE-2026-63896"},"products":["Linux"],"published":"2026-07-19","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":"2026-07-19","vendors":["Linux"]},"summary":"A missing sanity check in the Linux kernel's mct_u232 USB serial driver allows local attackers to leak uninitialized kernel memory to user space.","url":"https://insights.sbomify.com/CVE-2026-63897/"}