{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-27248 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-27248 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-27248 is a high-severity memory corruption vulnerability in D-Link DAP-2020, published on 14 Apr 2021. 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-2021-27248 and fix it if it is affected.\n\nWhat it is: CVE-2021-27248 is a high-severity memory corruption vulnerability in D-Link DAP-2020, published on 14 Apr 2021. 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-2021-27248 in the wild and no public exploit code.\n\nAffected product: D-Link DAP-2020. 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-2021-27248/ (Markdown: https://insights.sbomify.com/CVE-2021-27248/index.md)","id":"CVE-2021-27248","markdown":"https://insights.sbomify.com/CVE-2021-27248/index.md","name":"CVE-2021-27248","record":{"aliases":["GHSA-v89m-75xw-x3cc"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Wi-Fi access point","requires_auth":"none","summary":"Network-adjacent attackers can execute arbitrary code as root on D-Link DAP-2020 access points via a stack-based buffer overflow in CGI script processing.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"dap-2020_firmware","vendor":"dlink"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-121","name":"Stack-based Buffer Overflow"}],"description":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 v1.01rc001 Wi-Fi access points. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of CGI scripts. When parsing the getpage parameter, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10932.","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 DAP-2020","id":"CVE-2021-27248","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Command injection in DAP-2020","id":"CVE-2021-27249"},"packages":[],"prev":{"headline":"Information disclosure in WeChat","id":"CVE-2021-27247"},"products":["DAP-2020"],"published":"2021-04-14","related":[{"cvss_score":8.8,"headline":"Memory corruption in DAP-2020","id":"CVE-2021-34861","kev_date_added":null,"published":"2021-10-25"},{"cvss_score":8.8,"headline":"Memory corruption in DAP-2020","id":"CVE-2021-34862","kev_date_added":null,"published":"2021-10-25"},{"cvss_score":8.8,"headline":"Memory corruption in DAP-2020","id":"CVE-2021-34863","kev_date_added":null,"published":"2021-10-25"},{"cvss_score":8.8,"headline":"Command injection in DAP-2020","id":"CVE-2021-27249","kev_date_added":null,"published":"2021-04-14"},{"cvss_score":6.5,"headline":"Path traversal in DAP-2020","id":"CVE-2021-34860","kev_date_added":null,"published":"2021-10-25"},{"cvss_score":6.5,"headline":"Path traversal in DAP-2020","id":"CVE-2021-27250","kev_date_added":null,"published":"2021-04-14"}],"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":"2024-08-03","vendors":["D-Link"]},"summary":"Network-adjacent attackers can execute arbitrary code as root on D-Link DAP-2020 access points via a stack-based buffer overflow in CGI script processing.","url":"https://insights.sbomify.com/CVE-2021-27248/"}