{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8871 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-8871 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-8871 is a high-severity memory corruption vulnerability in Parallels Parallels Desktop, published on 23 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8871 and fix it if it is affected.\n\nWhat it is: CVE-2020-8871 is a high-severity memory corruption vulnerability in Parallels Parallels Desktop, published on 23 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8871 in the wild and no public exploit code.\n\nAffected product: Parallels Parallels Desktop. 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-2020-8871/ (Markdown: https://insights.sbomify.com/CVE-2020-8871/index.md)","id":"CVE-2020-8871","markdown":"https://insights.sbomify.com/CVE-2020-8871/index.md","name":"CVE-2020-8871","record":{"aliases":["GHSA-rmp8-cm96-7qjh"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Parallels Desktop","requires_auth":"high_privilege","summary":"Local attackers with guest code execution can escalate privileges to the hypervisor via a buffer overflow in the VGA virtual device.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"parallels_desktop","vendor":"parallels"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.0-47107 . An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the VGA virtual device. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor. Was ZDI-CAN-9403.","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 Desktop","id":"CVE-2020-8871","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"parallels:parallels_desktop","products":["parallels:parallels_desktop"],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in Desktop","id":"CVE-2020-8872"},"packages":[],"prev":{"headline":"Memory corruption in Studio Photo","id":"CVE-2020-8870"},"products":["Desktop"],"published":"2020-03-23","related":[{"cvss_score":8.8,"headline":"Path traversal in Parallels Desktop for Mac","id":"CVE-2025-31359","kev_date_added":null,"published":"2025-06-03"},{"cvss_score":8.8,"headline":"Privilege escalation in Desktop","id":"CVE-2021-34864","kev_date_added":null,"published":"2021-10-25"},{"cvss_score":8.8,"headline":"Memory corruption in Desktop","id":"CVE-2021-31420","kev_date_added":null,"published":"2021-04-29"},{"cvss_score":8.8,"headline":"Memory corruption in Desktop","id":"CVE-2021-31424","kev_date_added":null,"published":"2021-04-29"},{"cvss_score":8.8,"headline":"Integer overflow in Desktop","id":"CVE-2021-31425","kev_date_added":null,"published":"2021-04-29"},{"cvss_score":8.8,"headline":"Integer overflow in Desktop","id":"CVE-2021-31426","kev_date_added":null,"published":"2021-04-29"},{"cvss_score":8.8,"headline":"Memory corruption in Desktop","id":"CVE-2021-27242","kev_date_added":null,"published":"2021-03-29"}],"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":"2024-08-04","vendors":["Parallels"]},"summary":"Local attackers with guest code execution can escalate privileges to the hypervisor via a buffer overflow in the VGA virtual device.","url":"https://insights.sbomify.com/CVE-2020-8871/"}