{"answers":{"affected":"It affects 41 products.","exploited":"There is no known exploitation of CVE-2021-34947 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34947 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34947 is a high-severity memory corruption vulnerability in Netgear D7800 Firmware, published on 7 May 2024. 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-2021-34947 and fix it if it is affected.\n\nWhat it is: CVE-2021-34947 is a high-severity memory corruption vulnerability in Netgear D7800 Firmware, published on 7 May 2024. 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-2021-34947 in the wild and no public exploit code.\n\nAffected product: Netgear D7800 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-2021-34947/ (Markdown: https://insights.sbomify.com/CVE-2021-34947/index.md)","id":"CVE-2021-34947","markdown":"https://insights.sbomify.com/CVE-2021-34947/index.md","name":"CVE-2021-34947","record":{"aliases":["GHSA-jj28-565j-58r3"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"NETGEAR R7800 router","requires_auth":"none","summary":"Network-adjacent attackers can execute arbitrary code as root on NETGEAR R7800 routers via an out-of-bounds write in net-cgi.","user_interaction":"not_required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"d7800_firmware","vendor":"netgear"},{"product":"ex2700_firmware","vendor":"netgear"},{"product":"ex6100_firmware","vendor":"netgear"},{"product":"ex6150_firmware","vendor":"netgear"},{"product":"ex6200_firmware","vendor":"netgear"},{"product":"ex6250_firmware","vendor":"netgear"},{"product":"ex6400_firmware","vendor":"netgear"},{"product":"ex6400v2_firmware","vendor":"netgear"},{"product":"ex6410_firmware","vendor":"netgear"},{"product":"ex6420_firmware","vendor":"netgear"},{"product":"ex6500v1_firmware","vendor":"netgear"},{"product":"ex7300_firmware","vendor":"netgear"},{"product":"ex7300v2_firmware","vendor":"netgear"},{"product":"ex7320_firmware","vendor":"netgear"},{"product":"ex7700_firmware","vendor":"netgear"},{"product":"ex8000_firmware","vendor":"netgear"},{"product":"lbr1020_firmware","vendor":"netgear"},{"product":"lbr20_firmware","vendor":"netgear"},{"product":"r6700ax_firmware","vendor":"netgear"},{"product":"r7800_firmware","vendor":"netgear"},{"product":"r8900_firmware","vendor":"netgear"},{"product":"r9000_firmware","vendor":"netgear"},{"product":"rax10_firmware","vendor":"netgear"},{"product":"rax120_firmware","vendor":"netgear"},{"product":"rax120v2_firmware","vendor":"netgear"},{"product":"rax70_firmware","vendor":"netgear"},{"product":"rax78_firmware","vendor":"netgear"},{"product":"rbr10_firmware","vendor":"netgear"},{"product":"rbr20_firmware","vendor":"netgear"},{"product":"rbr40_firmware","vendor":"netgear"},{"product":"rbr50_firmware","vendor":"netgear"},{"product":"rbs10_firmware","vendor":"netgear"},{"product":"rbs20_firmware","vendor":"netgear"},{"product":"rbs40_firmware","vendor":"netgear"},{"product":"rbs50_firmware","vendor":"netgear"},{"product":"rbs50y_firmware","vendor":"netgear"},{"product":"wn3000rpv2_firmware","vendor":"netgear"},{"product":"wnr2000v5_firmware","vendor":"netgear"},{"product":"xr450_firmware","vendor":"netgear"},{"product":"xr500_firmware","vendor":"netgear"},{"product":"xr700_firmware","vendor":"netgear"}],"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-787","name":"Out-of-bounds Write"}],"description":"NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 routers. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the parsing of the soap_block_table file. 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 data structure. An attacker can leverage this vulnerability to execute code in the context of root.\n. Was ZDI-CAN-13055.","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":"NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability","id":"CVE-2021-34947","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"netgear:d7800_firmware","products":["netgear:d7800_firmware","netgear:ex6200_firmware","netgear:r7800_firmware","netgear:r8900_firmware","netgear:r9000_firmware","netgear:rax120_firmware","netgear:rbr20_firmware","netgear:rbr40_firmware","netgear:rbr50_firmware","netgear:rbs20_firmware","netgear:rbs40_firmware","netgear:rbs50_firmware","netgear:xr500_firmware","netgear:xr700_firmware"],"type":"memory_corruption","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Foxit PDF Reader Square Annotation Use-After-Free Remote Code Execution Vulnerability","id":"CVE-2021-34948"},"packages":[],"prev":{"headline":"Memory corruption in View","id":"CVE-2021-34946"},"products":["R7800"],"published":"2024-05-07","related":[{"cvss_score":9.6,"headline":"Command injection in n/a","id":"CVE-2021-45618","kev_date_added":null,"published":"2021-12-26"},{"cvss_score":8.8,"headline":"Integer overflow in R6700v3","id":"CVE-2022-27641","kev_date_added":null,"published":"2023-03-29"},{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2020-26909","kev_date_added":null,"published":"2020-10-09"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2018-21202","kev_date_added":null,"published":"2020-04-28"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2018-21204","kev_date_added":null,"published":"2020-04-28"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2018-21205","kev_date_added":null,"published":"2020-04-28"}],"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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-08-04","vendors":["NETGEAR"]},"summary":"Network-adjacent attackers can execute arbitrary code as root on NETGEAR R7800 routers via an out-of-bounds write in net-cgi.","url":"https://insights.sbomify.com/CVE-2021-34947/"}