{"answers":{"affected":"It affects 5 products.","exploited":"There is no known exploitation of CVE-2019-20740 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-20740 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-20740 is a medium-severity memory corruption vulnerability in Netgear R8300 Firmware, published on 16 Apr 2020. 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-2019-20740 and fix it if it is affected.\n\nWhat it is: CVE-2019-20740 is a medium-severity memory corruption vulnerability in Netgear R8300 Firmware, published on 16 Apr 2020. 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-2019-20740 in the wild and no public exploit code.\n\nAffected product: Netgear R8300 Firmware. 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-2019-20740/ (Markdown: https://insights.sbomify.com/CVE-2019-20740/index.md)","id":"CVE-2019-20740","markdown":"https://insights.sbomify.com/CVE-2019-20740/index.md","name":"CVE-2019-20740","record":{"aliases":["GHSA-9j2r-7wv5-9gxw"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"NETGEAR router","requires_auth":"high_privilege","summary":"Authenticated attackers can exploit a stack-based buffer overflow in NETGEAR routers to execute arbitrary code or escalate privileges.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"dgn2200_firmware","vendor":"netgear"},{"product":"dgnd2200b_firmware","vendor":"netgear"},{"product":"r7300_firmware","vendor":"netgear"},{"product":"r8300_firmware","vendor":"netgear"},{"product":"r8500_firmware","vendor":"netgear"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/AC:H/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:R","version":"3.0"},"cwes":[{"id":"CWE-787","name":"Out-of-bounds Write"}],"description":"Certain NETGEAR devices are affected by a stack-based buffer overflow by an authenticated user. This affects DGN2200v4 before 1.0.0.110, DGND2200Bv4 before 1.0.0.109, R7300 before 1.0.0.70, R8300 before 1.0.2.130, and R8500 before 1.0.2.130.","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 n/a","id":"CVE-2019-20740","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"netgear:r8300_firmware","products":["netgear:r8300_firmware","netgear:r8500_firmware"],"type":"memory_corruption","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Information disclosure in n/a","id":"CVE-2019-20741"},"packages":[],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2019-20739"},"products":["n/a"],"published":"2020-04-16","related":[{"cvss_score":9.8,"headline":"NETGEAR DGN2200 Remote Code Execution","id":"CVE-2017-6077","kev_date_added":"2022-03-07","published":"2017-02-22"},{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2019-17373","kev_date_added":null,"published":"2019-10-09"},{"cvss_score":9.8,"headline":"Netgear DGN2200 and DGND3700 disclose the administrator password","id":"CVE-2016-5649","kev_date_added":null,"published":"2018-07-24"},{"cvss_score":8.8,"headline":"Auth bypass in n/a","id":"CVE-2024-57046","kev_date_added":null,"published":"2025-02-18"},{"cvss_score":8.8,"headline":"Cross-site request forgery in n/a","id":"CVE-2017-18755","kev_date_added":null,"published":"2020-04-22"},{"cvss_score":8.8,"headline":"Cross-site request forgery in n/a","id":"CVE-2017-6366","kev_date_added":null,"published":"2017-03-15"},{"cvss_score":8.3,"headline":"Auth bypass in n/a","id":"CVE-2020-35785","kev_date_added":null,"published":"2020-12-29"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"Authenticated attackers can exploit a stack-based buffer overflow in NETGEAR routers to execute arbitrary code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2019-20740/"}