{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2025-11678 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-11678 is a high-severity memory corruption vulnerability in warmcat libwebsocket, published on 20 Oct 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-11678 and fix it if it is affected.\n\nWhat it is: CVE-2025-11678 is a high-severity memory corruption vulnerability in warmcat libwebsocket, published on 20 Oct 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2025-11678 in the wild and no public exploit code.\n\nAffected product: warmcat libwebsocket. 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-2025-11678/ (Markdown: https://insights.sbomify.com/CVE-2025-11678/index.md)","id":"CVE-2025-11678","markdown":"https://insights.sbomify.com/CVE-2025-11678/index.md","name":"CVE-2025-11678","record":{"aliases":["BELL-CVE-2025-11678","DEBIAN-CVE-2025-11678","GHSA-2g39-f45w-2fcm","RHSA-2025:22969","UBUNTU-CVE-2025-11678"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"libwebsockets library","requires_auth":"none","summary":"A stack-based buffer overflow in libwebsockets allows attackers to execute code or cause denial of service via crafted DNS responses when async DNS is enabled.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Nozomi","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"Stack-based Buffer Overflow in lws_adns_parse_label in warmcat libwebsockets allows, when the LWS_WITH_SYS_ASYNC_DNS flag is enabled during compilation, to overflow the label_stack, when the attacker is able to sniff a DNS request in order to craft a response with a matching id containing a label longer than the maximum.","ecosystems":["Red Hat:openstack:17.1::el9"],"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":"Stack-based Buffer Overflow in libwebsockets DNS response parsing","id":"CVE-2025-11678","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2025"},"n_packages":4,"n_references":2,"next":{"headline":"Out-of-bounds Read in libwebsockets PNG parsing","id":"CVE-2025-11679"},"packages":[{"ecosystem":"Red Hat:openstack:17.1::el9","fixed":["0:4.3.0-2.el9ost"],"introduced":["0"],"last_affected":[],"package":"libwebsockets","purl":"pkg:rpm/redhat/libwebsockets","source":"RHSA-2025:22969"},{"ecosystem":"Red Hat:openstack:17.1::el9","fixed":["0:4.3.0-2.el9ost"],"introduced":["0"],"last_affected":[],"package":"libwebsockets-debuginfo","purl":"pkg:rpm/redhat/libwebsockets-debuginfo","source":"RHSA-2025:22969"},{"ecosystem":"Red Hat:openstack:17.1::el9","fixed":["0:4.3.0-2.el9ost"],"introduced":["0"],"last_affected":[],"package":"libwebsockets-debugsource","purl":"pkg:rpm/redhat/libwebsockets-debugsource","source":"RHSA-2025:22969"},{"ecosystem":"Red Hat:openstack:17.1::el9","fixed":["0:4.3.0-2.el9ost"],"introduced":["0"],"last_affected":[],"package":"libwebsockets-devel-debuginfo","purl":"pkg:rpm/redhat/libwebsockets-devel-debuginfo","source":"RHSA-2025:22969"}],"prev":{"headline":"Use After Free in libwebsockets WebSocket server","id":"CVE-2025-11677"},"products":["libwebsocket"],"published":"2025-10-20","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"2025-10-20","vendors":["warmcat"]},"summary":"A stack-based buffer overflow in libwebsockets allows attackers to execute code or cause denial of service via crafted DNS responses when async DNS is enabled.","url":"https://insights.sbomify.com/CVE-2025-11678/"}