{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-40726 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-40726 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-40726 is a high-severity use after free vulnerability in Adobe Acrobat Dc, published on 7 Oct 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-2021-40726 and fix it if it is affected.\n\nWhat it is: CVE-2021-40726 is a high-severity use after free vulnerability in Adobe Acrobat Dc, published on 7 Oct 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-2021-40726 in the wild and no public exploit code.\n\nAffected product: Adobe Acrobat Dc. 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-2021-40726/ (Markdown: https://insights.sbomify.com/CVE-2021-40726/index.md)","id":"CVE-2021-40726","markdown":"https://insights.sbomify.com/CVE-2021-40726/index.md","name":"CVE-2021-40726","record":{"aliases":["GHSA-3p6p-pp2j-3qr6"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"PDF reader","requires_auth":"none","summary":"Attackers can execute arbitrary code by tricking users into opening malicious PDFs with AcroForm fields in Adobe Acrobat Reader.","user_interaction":"required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"adobe","cpe":[{"product":"acrobat_dc","vendor":"adobe"},{"product":"acrobat_reader_dc","vendor":"adobe"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability when processing AcroForm field that could result in arbitrary code execution in the context of the current user. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.","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":"Adobe Acrobat Reader DC AcroForm Field Use-After-Free Remote Code Execution Vulnerability","id":"CVE-2021-40726","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"adobe:acrobat_dc","products":["adobe:acrobat_dc","adobe:acrobat_reader_dc"],"type":"use_after_free","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Adobe InDesign crashes when parsing the TIF file","id":"CVE-2021-40727"},"packages":[],"prev":{"headline":"Adobe Acrobat Reader DC AcroForm listbox Use-After-Free Remote Code Execution Vulnerability","id":"CVE-2021-40725"},"products":["Acrobat Reader"],"published":"2021-10-07","related":[{"cvss_score":8.8,"headline":"Adobe Acrobat and Reader Double Free","id":"CVE-2018-4990","kev_date_added":"2022-06-08","published":"2018-07-09"},{"cvss_score":7.8,"headline":"Adobe Acrobat Use-After-Free","id":"CVE-2020-9715","kev_date_added":"2026-04-13","published":"2020-08-19"},{"cvss_score":9.8,"headline":"Use after free in Adobe Acrobat and Reader","id":"CVE-2020-3792","kev_date_added":null,"published":"2020-03-25"},{"cvss_score":9.8,"headline":"Use after free in Adobe Acrobat and Reader","id":"CVE-2020-3793","kev_date_added":null,"published":"2020-03-25"},{"cvss_score":9.8,"headline":"Memory corruption in Adobe Acrobat and Reader","id":"CVE-2020-3795","kev_date_added":null,"published":"2020-03-25"},{"cvss_score":9.8,"headline":"Memory corruption in Adobe Acrobat and Reader","id":"CVE-2020-3797","kev_date_added":null,"published":"2020-03-25"},{"cvss_score":9.8,"headline":"Memory corruption in Adobe Acrobat and Reader","id":"CVE-2020-3799","kev_date_added":null,"published":"2020-03-25"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["Adobe"]},"summary":"Attackers can execute arbitrary code by tricking users into opening malicious PDFs with AcroForm fields in Adobe Acrobat Reader.","url":"https://insights.sbomify.com/CVE-2021-40726/"}