{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-49416 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-49416 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-49416 is a high-severity vulnerability in Freebsd Freebsd, published on 27 Jun 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-2026-49416 and fix it if it is affected.\n\nWhat it is: CVE-2026-49416 is a high-severity vulnerability in Freebsd Freebsd, published on 27 Jun 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-2026-49416 in the wild and no public exploit code.\n\nAffected product: Freebsd Freebsd. 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-2026-49416/ (Markdown: https://insights.sbomify.com/CVE-2026-49416/index.md)","id":"CVE-2026-49416","markdown":"https://insights.sbomify.com/CVE-2026-49416/index.md","name":"CVE-2026-49416","record":{"aliases":["GHSA-f3p8-j3ww-gvq7"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"FreeBSD kernel","requires_auth":"low_privilege","summary":"An unprivileged local user can trigger an integer overflow in the FreeBSD kernel vt(4) driver to perform an out-of-bounds write and escalate privileges.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"freebsd","cpe":[{"product":"freebsd","vendor":"freebsd"}],"cvss":{"score":7.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-190","name":"Integer Overflow or Wraparound"}],"description":"The CONS_HISTORY ioctl handler did not adequately validate the requested history size.  A large value caused an integer overflow in the buffer size calculation, resulting in a heap allocation smaller than expected.  Subsequent initialization of the buffer wrote beyond the end of the allocation.\n\nAn unprivileged local user with access to a vt(4) device can trigger an out-of-bounds write in the kernel, potentially escalating privileges.","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":"Integer overflow in vt(4) CONS_HISTORY ioctl","id":"CVE-2026-49416","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"freebsd:freebsd","products":["freebsd:freebsd"],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Multiple vulnerabilities in the sound(4) mmap path","id":"CVE-2026-49417"},"packages":[],"prev":{"headline":"Local privilege escalation via execve(2) TOCTOU race","id":"CVE-2026-49415"},"products":["FreeBSD"],"published":"2026-06-27","related":[{"cvss_score":10,"headline":"Memory corruption in FreeBSD","id":"CVE-2018-17160","kev_date_added":null,"published":"2018-12-04"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2014-3954","kev_date_added":null,"published":"2014-10-27"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2006-4304","kev_date_added":null,"published":"2006-08-24"},{"cvss_score":10,"headline":"Integer overflow in n/a","id":"CVE-2006-0226","kev_date_added":null,"published":"2006-01-19"},{"cvss_score":10,"headline":"Denial of service in n/a","id":"CVE-2004-0002","kev_date_added":null,"published":"2004-02-03"},{"cvss_score":10,"headline":"Security feature bypass in n/a","id":"CVE-2001-0969","kev_date_added":null,"published":"2002-03-09"},{"cvss_score":10,"headline":"Denial of service in n/a","id":"CVE-2001-0388","kev_date_added":null,"published":"2001-09-18"}],"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)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-30","vendors":["FreeBSD"]},"summary":"An unprivileged local user can trigger an integer overflow in the FreeBSD kernel vt(4) driver to perform an out-of-bounds write and escalate privileges.","url":"https://insights.sbomify.com/CVE-2026-49416/"}