{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63959 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-63959 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-2026-63959 and fix it if it is affected.\n\nWhat it is: CVE-2026-63959 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-2026-63959 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-2026-63959/ (Markdown: https://insights.sbomify.com/CVE-2026-63959/index.md)","id":"CVE-2026-63959","markdown":"https://insights.sbomify.com/CVE-2026-63959/index.md","name":"CVE-2026-63959","record":{"aliases":["AZL-92739","BELL-CVE-2026-63959","DEBIAN-CVE-2026-63959","GHSA-fwcg-qvj5-vv4j","ROOT-OS-DEBIAN-11-CVE-2026-63959","ROOT-OS-DEBIAN-12-CVE-2026-63959","ROOT-OS-UBUNTU-2204-CVE-2026-63959","UBUNTU-CVE-2026-63959"],"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 malicious USB port can cause the Linux kernel to read uninitialized stack memory, potentially leaking sensitive information.","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: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT\n\nA broken/malicious port can transmit a CRC-valid frame whose header\nadvertises up to seven data objects but whose body carries fewer than\nthat.  Check for this, and rightfully reject the message, instead of\nreading from uninitialized stack memory.","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: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT","id":"CVE-2026-63959","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"usb: typec: wcove: don't write past struct pd_message in wcove_read_rx_buffer()","id":"CVE-2026-63960"},"packages":[],"prev":{"headline":"usb: typec: ucsi: validate connector number in ucsi_connector_change()","id":"CVE-2026-63958"},"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":"2026-07-20","vendors":["Linux"]},"summary":"A malicious USB port can cause the Linux kernel to read uninitialized stack memory, potentially leaking sensitive information.","url":"https://insights.sbomify.com/CVE-2026-63959/"}