{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63931 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-63931 is a denial of service 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-2026-63931 and fix it if it is affected.\n\nWhat it is: CVE-2026-63931 is a denial of service 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-2026-63931 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-2026-63931/ (Markdown: https://insights.sbomify.com/CVE-2026-63931/index.md)","id":"CVE-2026-63931","markdown":"https://insights.sbomify.com/CVE-2026-63931/index.md","name":"CVE-2026-63931","record":{"aliases":["BELL-CVE-2026-63931","DEBIAN-CVE-2026-63931","GHSA-63gc-r7wc-mrxq","ROOT-OS-UBUNTU-2204-CVE-2026-63931","UBUNTU-CVE-2026-63931"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A local attacker can cause a kernel crash by writing zero to the sampling frequency sysfs attribute in the SCD30 driver.","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\niio: chemical: scd30: fix division by zero in write_raw\n\nAdd a zero check for val2 before using it as a divisor when setting the\nsampling frequency. A user writing a zero fractional part to the\nsampling_frequency sysfs attribute triggers a division by zero in the\nkernel.","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":"iio: chemical: scd30: fix division by zero in write_raw","id":"CVE-2026-63931","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"iio: chemical: mhz19b: reject oversized serial replies","id":"CVE-2026-63932"},"packages":[],"prev":{"headline":"iio: buffer: hw-consumer: fix use-after-free in error path","id":"CVE-2026-63930"},"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 local attacker can cause a kernel crash by writing zero to the sampling frequency sysfs attribute in the SCD30 driver.","url":"https://insights.sbomify.com/CVE-2026-63931/"}