{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-41285 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-41285 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-41285 is a medium-severity denial of service vulnerability in Openbsd Openbsd, published on 20 Apr 2026. 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-2026-41285 and fix it if it is affected.\n\nWhat it is: CVE-2026-41285 is a medium-severity denial of service vulnerability in Openbsd Openbsd, published on 20 Apr 2026. 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-2026-41285 in the wild and no public exploit code.\n\nAffected product: Openbsd Openbsd. 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-2026-41285/ (Markdown: https://insights.sbomify.com/CVE-2026-41285/index.md)","id":"CVE-2026-41285","markdown":"https://insights.sbomify.com/CVE-2026-41285/index.md","name":"CVE-2026-41285","record":{"aliases":["GHSA-h2gc-758g-276m"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"OpenBSD OS","requires_auth":"none","summary":"A remote attacker can cause a denial of service in OpenBSD's slaacd and rad daemons by sending a crafted ICMPv6 packet with a zero-length option.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"openbsd","vendor":"openbsd"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"},{"id":"CWE-1284","name":"Improper Validation of Specified Quantity in Input"}],"description":"In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery (ND) option (over a local network) with length zero, because of an \"nd_opt_len * 8 - 2\" expression with no preceding check for whether nd_opt_len is zero.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-05-05","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-05-05T13:23:08Z","kind":"github_poc","ref":"https://github.com/Rat5ak/CVE-2026-41285-OpenBSD-v6daemons-go-brrr","stars":0,"title":"One IPv6 ND option with length zero. One missing check. Daemon walks backward and lives in the loop.  Reported to OpenBSD, fixed, CVE assigned."}],"tier":"poc_unverified"},"has_fix":false,"headline":"Denial of service in OpenBSD","id":"CVE-2026-41285","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"openbsd:openbsd","products":["openbsd:openbsd"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Stack-based Buffer Overflow in WatchGuard Agent Discovery Service on Windows Causes Denial of Service - Variant B","id":"CVE-2026-41286"},"packages":[],"prev":{"headline":"Apache Tomcat: Unbounded read in WebDAV LOCK and PROPFIND handling","id":"CVE-2026-41284"},"products":["OpenBSD"],"published":"2026-04-20","related":[{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2007-1365","kev_date_added":null,"published":"2007-03-10"},{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2004-0220","kev_date_added":null,"published":"2004-03-25"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2004-0083","kev_date_added":null,"published":"2004-02-14"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2004-0084","kev_date_added":null,"published":"2004-02-14"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2001-0284","kev_date_added":null,"published":"2001-05-07"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2000-1010","kev_date_added":null,"published":"2001-01-22"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2020-16088","kev_date_added":null,"published":"2020-07-28"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-21","vendors":["OpenBSD"]},"summary":"A remote attacker can cause a denial of service in OpenBSD's slaacd and rad daemons by sending a crafted ICMPv6 packet with a zero-length option.","url":"https://insights.sbomify.com/CVE-2026-41285/"}