{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-54771 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-54771 is a medium-severity use after free vulnerability in GNU Red Hat Enterprise Linux 10, published on 18 Nov 2025. 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-2025-54771 and fix it if it is affected.\n\nWhat it is: CVE-2025-54771 is a medium-severity use after free vulnerability in GNU Red Hat Enterprise Linux 10, published on 18 Nov 2025. 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-2025-54771 in the wild and no public exploit code.\n\nAffected product: GNU Red Hat Enterprise Linux 10. 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-2025-54771/ (Markdown: https://insights.sbomify.com/CVE-2025-54771/index.md)","id":"CVE-2025-54771","markdown":"https://insights.sbomify.com/CVE-2025-54771/index.md","name":"CVE-2025-54771","record":{"aliases":["DEBIAN-CVE-2025-54771","GHSA-5rr4-3f6q-m7hp","UBUNTU-CVE-2025-54771"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service","data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GNU GRUB bootloader","requires_auth":"none","summary":"An attacker can exploit a use-after-free flaw in the GRUB bootloader to cause a system crash or potentially compromise data integrity and confidentiality.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":4.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-825","name":"Expired Pointer Dereference"}],"description":"A use-after-free vulnerability has been identified in the GNU GRUB (Grand Unified Bootloader). The flaw occurs because the file-closing process incorrectly retains a memory pointer, leaving an invalid reference to a file system structure. An attacker could exploit this vulnerability to cause grub to crash, leading to a Denial of Service. Possible data integrity or confidentiality compromise is not discarded.","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":"Grub2: use-after-free in grub_file_close()","id":"CVE-2025-54771","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2025"},"n_packages":0,"n_references":3,"next":{"headline":"Denial of service in Multiple products in bizhub series","id":"CVE-2025-54777"},"packages":[],"prev":{"headline":"Grub2: use-after-free in net_set_vlan","id":"CVE-2025-54770"},"products":["Red Hat Enterprise Linux 10","Red Hat Enterprise Linux 7","Red Hat Enterprise Linux 8","Red Hat Enterprise Linux 9","Red Hat OpenShift Container Platform 4","grub2"],"published":"2025-11-18","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["GNU","Red Hat"]},"summary":"An attacker can exploit a use-after-free flaw in the GRUB bootloader to cause a system crash or potentially compromise data integrity and confidentiality.","url":"https://insights.sbomify.com/CVE-2025-54771/"}