{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8735 exists.","fix":"No fix has been published for CVE-2025-8735 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-8735 is a medium-severity vulnerability in GNU cflow, published on 8 Aug 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-2025-8735 and fix it if it is affected.\n\nWhat it is: CVE-2025-8735 is a medium-severity vulnerability in GNU cflow, published on 8 Aug 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8735 exists.\n\nAffected product: GNU cflow. 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-2025-8735/ (Markdown: https://insights.sbomify.com/CVE-2025-8735/index.md)","id":"CVE-2025-8735","markdown":"https://insights.sbomify.com/CVE-2025-8735/index.md","name":"CVE-2025-8735","record":{"aliases":["DEBIAN-CVE-2025-8735","GHSA-9jpr-2g6g-wg42","UBUNTU-CVE-2025-8735"],"analysis":{"component_type":"developer_tool","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"GNU cflow","requires_auth":"low_privilege","summary":"A local attacker can cause a denial of service in GNU cflow via a null pointer dereference in the lexer.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"},{"id":"CWE-404","name":"Improper Resource Shutdown or Release"}],"description":"A vulnerability classified as problematic was found in GNU cflow up to 1.8. Affected by this vulnerability is the function yylex of the file c.c of the component Lexer. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"GNU cflow Lexer c.c yylex null pointer dereference","id":"CVE-2025-8735","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2025"},"n_packages":0,"n_references":6,"next":{"headline":"GNU cflow Lexer c.c yylex buffer overflow","id":"CVE-2025-8736"},"packages":[],"prev":{"headline":"** REJECT ** DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2025-8734"},"products":["cflow"],"published":"2025-08-08","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-10-28","vendors":["GNU"]},"summary":"A local attacker can cause a denial of service in GNU cflow via a null pointer dereference in the lexer.","url":"https://insights.sbomify.com/CVE-2025-8735/"}