{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-41027 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-41027 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-41027 is a high-severity memory corruption vulnerability in Fortinet Fortiweb, published on 8 Dec 2021. 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-2021-41027 and fix it if it is affected.\n\nWhat it is: CVE-2021-41027 is a high-severity memory corruption vulnerability in Fortinet Fortiweb, published on 8 Dec 2021. 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-2021-41027 in the wild and no public exploit code.\n\nAffected product: Fortinet Fortiweb. 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-2021-41027/ (Markdown: https://insights.sbomify.com/CVE-2021-41027/index.md)","id":"CVE-2021-41027","markdown":"https://insights.sbomify.com/CVE-2021-41027/index.md","name":"CVE-2021-41027","record":{"aliases":["GHSA-jgm2-2f8q-fj63"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Fortinet FortiWeb","requires_auth":"low_privilege","summary":"An authenticated attacker can execute unauthorized code via crafted certificates due to a stack-based buffer overflow in FortiWeb.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"fortinet","cpe":[{"product":"fortiweb","vendor":"fortinet"}],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C","version":"3.1"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"A stack-based buffer overflow in Fortinet FortiWeb version 6.4.1 and 6.4.0, allows an authenticated attacker to execute unauthorized code or commands via crafted certificates loaded into the device.","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":"Memory corruption in Fortinet FortiWeb","id":"CVE-2021-41027","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fortinet:fortiweb","products":["fortinet:fortiweb"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Hardcoded credentials in Fortinet FortiClientEMS, FortiClientWindows, FortiClientLinux, FortiClientMac","id":"CVE-2021-41028"},"packages":[],"prev":{"headline":"Path traversal in Fortinet FortiWeb","id":"CVE-2021-41026"},"products":["Fortinet FortiWeb"],"published":"2021-12-08","related":[{"cvss_score":9.6,"headline":"Fortinet FortiWeb SQL Injection","id":"CVE-2025-25257","kev_date_added":"2025-07-18","published":"2025-07-17"},{"cvss_score":9.4,"headline":"Fortinet FortiWeb Path Traversal","id":"CVE-2025-64446","kev_date_added":"2025-11-14","published":"2025-11-14"},{"cvss_score":6.7,"headline":"Fortinet FortiWeb OS Command Injection","id":"CVE-2025-58034","kev_date_added":"2025-11-18","published":"2025-11-18"},{"cvss_score":9.8,"headline":"SQL injection in Fortinet FortiWeb","id":"CVE-2020-29015","kev_date_added":null,"published":"2021-01-14"},{"cvss_score":9.8,"headline":"Memory corruption in Fortinet FortiWeb","id":"CVE-2020-29016","kev_date_added":null,"published":"2021-01-14"},{"cvss_score":9.3,"headline":"Memory corruption in FortiWeb","id":"CVE-2021-42756","kev_date_added":null,"published":"2023-02-16"},{"cvss_score":9.1,"headline":"Auth bypass in FortiWeb","id":"CVE-2025-59719","kev_date_added":null,"published":"2025-12-09"}],"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":"2024-10-25","vendors":["Fortinet"]},"summary":"An authenticated attacker can execute unauthorized code via crafted certificates due to a stack-based buffer overflow in FortiWeb.","url":"https://insights.sbomify.com/CVE-2021-41027/"}