{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-93866 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-93866 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-93866 is a critical vulnerability in WatchGuard Fireware OS, published on 27 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-93866 and fix it if it is affected.\n\nWhat it is: CVE-2026-93866 is a critical vulnerability in WatchGuard Fireware OS, published on 27 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-93866 in the wild and no public exploit code.\n\nAffected product: WatchGuard Fireware OS. 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-2026-93866/ (Markdown: https://insights.sbomify.com/CVE-2026-93866/index.md)","id":"CVE-2026-93866","markdown":"https://insights.sbomify.com/CVE-2026-93866/index.md","name":"CVE-2026-93866","record":{"aliases":["GHSA-g944-9gh9-2wqp"],"analysis":null,"analysis_generated_by":null,"assigner":"WatchGuard","cpe":[],"cvss":{"score":9.2,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"},{"id":"CWE-288","name":"Authentication Bypass Using an Alternate Path or Channel"},{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"An integer overflow vulnerability in the WebSocket connection handling used by WatchGuard Fireware OS's Access Portal allows a remote, unauthenticated attacker to write beyond the bounds of a heap buffer by sending a specially crafted request while the Access Portal feature is enabled.","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":"Fireware OS Pre-Authentication Integer Overflow in Access Portal Allows Out-of-Bounds Write","id":"CVE-2026-93866","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Cotonti through 1.0.0 Predictable Password Recovery Token via Weak PRNG","id":"CVE-2026-93868"},"packages":[],"prev":{"headline":"Fireware OS Missing Authentication in FireCluster Sync Daemon Allows Remote Root Action Injection","id":"CVE-2026-93865"},"products":["Fireware OS"],"published":"2026-10-27","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-27","vendors":["WatchGuard"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-93866/"}