{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-62432 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-62432 is a high-severity vulnerability in Xen, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-62432 and fix it if it is affected.\n\nWhat it is: CVE-2026-62432 is a high-severity vulnerability in Xen, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-62432 in the wild and no public exploit code.\n\nAffected product: Xen. 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-2026-62432/ (Markdown: https://insights.sbomify.com/CVE-2026-62432/index.md)","id":"CVE-2026-62432","markdown":"https://insights.sbomify.com/CVE-2026-62432/index.md","name":"CVE-2026-62432","record":{"aliases":["ALPINE-CVE-2026-62432","DEBIAN-CVE-2026-62432","GHSA-92f9-q54w-fxm8","UBUNTU-CVE-2026-62432"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Xen hypervisor","requires_auth":"none","summary":"A race condition in Xen's event channel handling can cause a NULL pointer dereference, leading to a denial of service.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"XEN","cpe":[],"cvss":{"score":7.3,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"The EVTCHNOP_expand_array hypercall checks for whether FIFO event\nchannels are enabled, but without holding the correct lock.  It can race\nwith EVTCHNOP_reset, resulting in dereferencing a NULL pointer.","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":"evtchn: Race between FIFO expand and reset","id":"CVE-2026-62432","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"correct buffer checks for DM_OP hypercalls","id":"CVE-2026-62433"},"packages":[],"prev":{"headline":"Viridian STIMER division by zero","id":"CVE-2026-62431"},"products":["Xen"],"published":"2026-07-28","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-28","vendors":["Xen"]},"summary":"A race condition in Xen's event channel handling can cause a NULL pointer dereference, leading to a denial of service.","url":"https://insights.sbomify.com/CVE-2026-62432/"}