{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-126254 in the wild and no public exploit code.","exposure":"Only installations with a non-default setting turned on are exposed.","fix":"No fix has been published for CVE-2026-126254 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-126254 is a critical integer overflow vulnerability in Fortinet FortiOS, published on 11 Nov 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-126254 and fix it if it is affected.\n\nWhat it is: CVE-2026-126254 is a critical integer overflow vulnerability in Fortinet FortiOS, published on 11 Nov 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-126254 in the wild and no public exploit code.\nExposure: Only installations with a non-default setting turned on are exposed.\n\nAffected product: Fortinet FortiOS. 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-2026-126254/ (Markdown: https://insights.sbomify.com/CVE-2026-126254/index.md)","id":"CVE-2026-126254","markdown":"https://insights.sbomify.com/CVE-2026-126254/index.md","name":"CVE-2026-126254","record":{"aliases":["GHSA-g2g3-rvm3-h345"],"analysis":{"component_type":"network_device","exploitable_when_present":false,"fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"firewall OS","requires_auth":"low_privilege","requires_specific_call":false,"summary":"A configured ibgp neighbor can send malformed attributes to all connected FortiOS routers via crafted requests.","user_interaction":"not_required","vuln_class":"integer_overflow","vulnerable_functions":[]},"analysis_generated_by":"sbomify/insights-2b-fp8","assigner":"fortinet","cpe":[],"cvss":{"score":9.6,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H/E:F/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-197","name":"Numeric Truncation Error"}],"description":"A numeric truncation error vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 through 7.4.12, FortiOS 7.2.0 through 7.2.13 may allow a configured ibgp neighbor to send malicious/malformed attributes to all connected routers via a specially crafted request","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 FortiOS","id":"CVE-2026-126254","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in FortiOS","id":"CVE-2026-126255"},"nickname":null,"packages":[],"prev":{"headline":"Auth bypass in FortiOS","id":"CVE-2026-126253"},"products":["FortiOS"],"published":"2026-11-11","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-12","vendors":["Fortinet"]},"summary":"A configured ibgp neighbor can send malformed attributes to all connected FortiOS routers via crafted requests.","url":"https://insights.sbomify.com/CVE-2026-126254/"}