{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-28638 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-28638 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-28638 is a high-severity memory corruption vulnerability in Adobe Acrobat Dc, published on 20 Aug 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-2021-28638 and fix it if it is affected.\n\nWhat it is: CVE-2021-28638 is a high-severity memory corruption vulnerability in Adobe Acrobat Dc, published on 20 Aug 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-2021-28638 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-2021-28638/ (Markdown: https://insights.sbomify.com/CVE-2021-28638/index.md)","id":"CVE-2021-28638","markdown":"https://insights.sbomify.com/CVE-2021-28638/index.md","name":"CVE-2021-28638","record":{"aliases":["GHSA-68f8-hhxj-3xpv"],"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":"An attacker can execute arbitrary code by tricking a user into opening a malicious PDF file in Adobe Acrobat Reader.","user_interaction":"required","vuln_class":"memory_corruption"},"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:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-122","name":"Heap-based Buffer Overflow"}],"description":"Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by a Heap-based Buffer overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must 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 PDF File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability","id":"CVE-2021-28638","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"adobe:acrobat_dc","products":["adobe:acrobat_dc","adobe:acrobat_reader_dc"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Adobe Acrobat Reader DC setAction Use-After-Free Remote Code Execution Vulnerability","id":"CVE-2021-28639"},"packages":[],"prev":{"headline":"Adobe Acrobat Pro DC PDFLibTool Out-of-Bounds Read Remote Code Execution Vulnerability","id":"CVE-2021-28637"},"products":["Acrobat Reader"],"published":"2021-08-20","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":"2024-09-16","vendors":["Adobe"]},"summary":"An attacker can execute arbitrary code by tricking a user into opening a malicious PDF file in Adobe Acrobat Reader.","url":"https://insights.sbomify.com/CVE-2021-28638/"}