{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-54770 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-54770 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-2025-54770 and fix it if it is affected.\n\nWhat it is: CVE-2025-54770 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-2025-54770 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-2025-54770/ (Markdown: https://insights.sbomify.com/CVE-2025-54770/index.md)","id":"CVE-2025-54770","markdown":"https://insights.sbomify.com/CVE-2025-54770/index.md","name":"CVE-2025-54770","record":{"aliases":["DEBIAN-CVE-2025-54770","GHSA-r6f8-x3mw-2qp5","UBUNTU-CVE-2025-54770"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GRUB2 bootloader","requires_auth":"none","summary":"An attacker can cause a system crash and denial of service by exploiting a use-after-free vulnerability in the GRUB2 network module.","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 vulnerability has been identified in the GRUB2 bootloader's network module that poses an immediate Denial of Service (DoS) risk. This flaw is a Use-after-Free issue, caused because the net_set_vlan command is not properly unregistered when the network module is unloaded from memory. An attacker who can execute this command can force the system to access memory locations that are no longer valid. Successful exploitation leads directly to system instability, which can result in a complete crash and halt system availability","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 net_set_vlan","id":"CVE-2025-54770","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":"Grub2: use-after-free in grub_file_close()","id":"CVE-2025-54771"},"packages":[],"prev":{"headline":"KL-001-2025-016: Xorux LPAR2RRD File Upload Directory Traversal","id":"CVE-2025-54769"},"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 cause a system crash and denial of service by exploiting a use-after-free vulnerability in the GRUB2 network module.","url":"https://insights.sbomify.com/CVE-2025-54770/"}