{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-32477 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2022-32477 yet. Limit exposure of the affected software until one is available.","what":"CVE-2022-32477 is a high-severity vulnerability in Insyde Insydeh2o, published on 15 Feb 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-2022-32477 and fix it if it is affected.\n\nWhat it is: CVE-2022-32477 is a high-severity vulnerability in Insyde Insydeh2o, published on 15 Feb 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-2022-32477 in the wild and no public exploit code.\n\nAffected product: Insyde Insydeh2o. 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-2022-32477/ (Markdown: https://insights.sbomify.com/CVE-2022-32477/index.md)","id":"CVE-2022-32477","markdown":"https://insights.sbomify.com/CVE-2022-32477/index.md","name":"CVE-2022-32477","record":{"aliases":["GHSA-633w-9qcg-g8vx"],"analysis":{"component_type":"hardware_firmware","fix_type":"configuration_change","impacts":["privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"InsydeH2O firmware","requires_auth":"low_privilege","summary":"Attackers can exploit a race condition in InsydeH2O firmware to corrupt SMRAM and escalate privileges, mitigated by enabling IOMMU protection.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"insydeh2o","vendor":"insyde"}],"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":[{"id":"CWE-367","name":"Time-of-check Time-of-use (TOCTOU) Race Condition"}],"description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. DMA attacks on the FvbServicesRuntimeDxe shared buffer used by SMM and non-SMM code could cause TOCTOU race-condition issues that could lead to corruption of SMRAM and escalation of privileges. This attack can be mitigated using IOMMU protection for the ACPI runtime memory used for the command buffer. This attack can be mitigated by copying the firmware block services data to SMRAM before checking it.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Race condition in n/a","id":"CVE-2022-32477","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"insyde:insydeh2o","products":["insyde:insydeh2o"],"type":"race_condition","year":"2022"},"n_packages":0,"n_references":2,"next":{"headline":"Race condition in n/a","id":"CVE-2022-32478"},"packages":[],"prev":{"headline":"Race condition in n/a","id":"CVE-2022-32476"},"products":["n/a"],"published":"2023-02-15","related":[{"cvss_score":9.8,"headline":"Missing authorization in n/a","id":"CVE-2021-41842","kev_date_added":null,"published":"2022-01-05"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2023-22612","kev_date_added":null,"published":"2023-04-11"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2023-22613","kev_date_added":null,"published":"2023-04-11"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2023-22614","kev_date_added":null,"published":"2023-04-11"},{"cvss_score":8.4,"headline":"Memory corruption in n/a","id":"CVE-2023-22615","kev_date_added":null,"published":"2023-04-11"},{"cvss_score":8.2,"headline":"Memory corruption in n/a","id":"CVE-2022-36448","kev_date_added":null,"published":"2022-09-28"},{"cvss_score":8.2,"headline":"Memory corruption in n/a","id":"CVE-2022-35893","kev_date_added":null,"published":"2022-09-23"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-05-05","vendors":["n/a"]},"summary":"Attackers can exploit a race condition in InsydeH2O firmware to corrupt SMRAM and escalate privileges, mitigated by enabling IOMMU protection.","url":"https://insights.sbomify.com/CVE-2022-32477/"}