{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-39826 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-39826 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-39826 is a high-severity command injection vulnerability in Adobe Digital Editions, published on 27 Sep 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-2021-39826 and fix it if it is affected.\n\nWhat it is: CVE-2021-39826 is a high-severity command injection vulnerability in Adobe Digital Editions, published on 27 Sep 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-2021-39826 in the wild and no public exploit code.\n\nAffected product: Adobe Digital Editions. 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-2021-39826/ (Markdown: https://insights.sbomify.com/CVE-2021-39826/index.md)","id":"CVE-2021-39826","markdown":"https://insights.sbomify.com/CVE-2021-39826/index.md","name":"CVE-2021-39826","record":{"aliases":["GHSA-42gw-xghc-5vpq"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Adobe Digital Editions","requires_auth":"none","summary":"An authenticated attacker can execute arbitrary commands by tricking a user into opening a maliciously crafted .epub file in Adobe Digital Editions.","user_interaction":"required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"adobe","cpe":[{"product":"digital_editions","vendor":"adobe"}],"cvss":{"score":8.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"Adobe Digital Editions 4.5.11.187646 (and earlier) are affected by an arbitrary command execution vulnerability. An authenticated attacker could leverage this vulnerability to execute arbitrary commands. User interaction is required to abuse this vulnerability in that a user must open a maliciously crafted .epub 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 Digital Editions Command Execution Vulnerability","id":"CVE-2021-39826","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"adobe:digital_editions","products":["adobe:digital_editions"],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Adobe Digital Editions Installer flaw leads to Arbitrary File System Write","id":"CVE-2021-39827"},"packages":[],"prev":{"headline":"Adobe Photoshop Elements Edit 2021 TTF Font Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability","id":"CVE-2021-39825"},"products":["Digital Editions"],"published":"2021-09-27","related":[{"cvss_score":10,"headline":"Memory corruption in Adobe Digital Editions 4.5.4 and earlier.","id":"CVE-2017-3088","kev_date_added":null,"published":"2017-06-20"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2014-0494","kev_date_added":null,"published":"2014-01-23"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2013-1377","kev_date_added":null,"published":"2013-07-31"},{"cvss_score":9.8,"headline":"Command injection in Adobe Digital Editions","id":"CVE-2020-3760","kev_date_added":null,"published":"2020-02-13"},{"cvss_score":9.8,"headline":"Memory corruption in Adobe Digital Editions","id":"CVE-2019-7095","kev_date_added":null,"published":"2019-05-24"},{"cvss_score":9.8,"headline":"Memory corruption in Adobe Digital Editions","id":"CVE-2018-12813","kev_date_added":null,"published":"2018-10-17"},{"cvss_score":9.8,"headline":"Memory corruption in Adobe Digital Editions","id":"CVE-2018-12814","kev_date_added":null,"published":"2018-10-17"}],"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":"An authenticated attacker can execute arbitrary commands by tricking a user into opening a maliciously crafted .epub file in Adobe Digital Editions.","url":"https://insights.sbomify.com/CVE-2021-39826/"}