{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-46813 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2023-46813 is a high-severity vulnerability in Linux kernel, published on 27 Oct 2023. 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-2023-46813 and fix it if it is affected.\n\nWhat it is: CVE-2023-46813 is a high-severity vulnerability in Linux kernel, published on 27 Oct 2023. 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-2023-46813 in the wild and no public exploit code.\n\nAffected product: Linux kernel. 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-2023-46813/ (Markdown: https://insights.sbomify.com/CVE-2023-46813/index.md)","id":"CVE-2023-46813","markdown":"https://insights.sbomify.com/CVE-2023-46813/index.md","name":"CVE-2023-46813","record":{"aliases":["AZL-31815","AZL-34802","BELL-CVE-2023-46813","DEBIAN-CVE-2023-46813","GHSA-w26h-mgrc-mcqq","UBUNTU-CVE-2023-46813","openSUSE-SU-2024:13405-1"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"Local attackers can exploit a race condition in the Linux kernel SEV-ES handler to achieve arbitrary kernel memory writes and privilege escalation.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"An issue was discovered in the Linux kernel before 6.5.9, exploitable by local users with userspace access to MMIO registers. Incorrect access checking in the #VC handler and instruction emulation of the SEV-ES emulation of MMIO accesses could lead to arbitrary write access to kernel memory (and thus privilege escalation). This depends on a race condition through which userspace can replace an instruction before the #VC handler reads it.","ecosystems":["openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2023-05-29","github_poc":1,"max_poc_stars":8,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-05-29T15:10:43Z","kind":"github_poc","ref":"https://github.com/Freax13/cve-2023-46813-poc","stars":8,"title":null}],"tier":"poc_unverified"},"has_fix":true,"headline":"Race condition in n/a","id":"CVE-2023-46813","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"race_condition","year":"2023"},"n_packages":1,"n_references":6,"next":{"headline":"Privilege escalation in n/a","id":"CVE-2023-46814"},"packages":[{"ecosystem":"openSUSE:Tumbleweed","fixed":["6.6.1-1.1"],"introduced":["0"],"last_affected":[],"package":"kernel-source","purl":"pkg:rpm/opensuse/kernel-source\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:13405-1"}],"prev":{"headline":"Privilege escalation in Secure Access Linux","id":"CVE-2023-46810"},"products":["n/a"],"published":"2023-10-27","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-02-25","vendors":["n/a"]},"summary":"Local attackers can exploit a race condition in the Linux kernel SEV-ES handler to achieve arbitrary kernel memory writes and privilege escalation.","url":"https://insights.sbomify.com/CVE-2023-46813/"}