{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-27373 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-27373 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-27373 is a medium-severity vulnerability in Insyde Insydeh2o, published on 7 Aug 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-2023-27373 and fix it if it is affected.\n\nWhat it is: CVE-2023-27373 is a medium-severity vulnerability in Insyde Insydeh2o, published on 7 Aug 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-2023-27373 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-2023-27373/ (Markdown: https://insights.sbomify.com/CVE-2023-27373/index.md)","id":"CVE-2023-27373","markdown":"https://insights.sbomify.com/CVE-2023-27373/index.md","name":"CVE-2023-27373","record":{"aliases":["GHSA-79rc-fcmg-3r4m"],"analysis":{"component_type":"hardware_firmware","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"InsydeH2O BIOS","requires_auth":"low_privilege","summary":"Attackers can tamper with EFI variables to overlap SMRAM, bypassing security protections in InsydeH2O firmware.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"insydeh2o","vendor":"insyde"}],"cvss":{"score":5.5,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"An issue was discovered in Insyde InsydeH2O with kernel 5.0 through 5.5. Due to insufficient input validation, an attacker can tamper with a runtime-accessible EFI variable to cause a dynamic BAR setting to overlap SMRAM.","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":"Other in n/a","id":"CVE-2023-27373","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"insyde:insydeh2o","products":["insyde:insydeh2o"],"type":"other","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Missing Authentication In IDAttend’s IDWeb Application","id":"CVE-2023-27375"},"packages":[],"prev":{"headline":"Deserialization in n/a","id":"CVE-2023-27372"},"products":["n/a"],"published":"2023-08-07","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":"partial"},"state":"PUBLISHED","updated":"2025-03-07","vendors":["n/a"]},"summary":"Attackers can tamper with EFI variables to overlap SMRAM, bypassing security protections in InsydeH2O firmware.","url":"https://insights.sbomify.com/CVE-2023-27373/"}