{"id":"CVE-2022-27646","aliases":["EUVD-2022-32147","GHSA-qjg8-7gjq-vxf4"],"status":"published","title":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected...","description":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.","severity":{"version":"3.0","score":8,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01432,"percentile":0.73238,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-121"],"published":"2023-03-29T00:00:00Z","modified":"2026-06-17T04:37:24Z","exploits":[{"source":"pocgithub","id":"cyber-defence-campus/netgear_r6700v3_circled","title":"cyber-defence-campus/netgear_r6700v3_circled","date":"2023-06-01","url":"https://github.com/cyber-defence-campus/netgear_r6700v3_circled"}],"products":[{"vendor":"netgear","product":"cbr40_firmware"},{"vendor":"netgear","product":"lbr1020_firmware"},{"vendor":"netgear","product":"lbr20_firmware"},{"vendor":"netgear","product":"r6400_firmware"},{"vendor":"netgear","product":"r6700_firmware"},{"vendor":"netgear","product":"r6700v3"},{"vendor":"netgear","product":"r6900p_firmware"},{"vendor":"netgear","product":"r7000_firmware"},{"vendor":"netgear","product":"r7000p_firmware"},{"vendor":"netgear","product":"r7850_firmware"},{"vendor":"netgear","product":"r7960p_firmware"},{"vendor":"netgear","product":"r8000_firmware"},{"vendor":"netgear","product":"r8000p_firmware"},{"vendor":"netgear","product":"rax200_firmware"},{"vendor":"netgear","product":"rax75_firmware"},{"vendor":"netgear","product":"rax80_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":"rs400_firmware"}],"references":[{"url":"https://kb.netgear.com/000064721/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0324","tags":["x_transferred","Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-22-523/","tags":["x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-27646"},{"url":"https://github.com/advisories/GHSA-qjg8-7gjq-vxf4"}],"sources":{"cve":[{"id":"CVE-2022-27646","description":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.","status":"published","published":"2023-03-29T00:00:00Z","modified":"2025-02-18T17:47:05.39Z","cvss":[{"version":"3.0","score":8,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:34:34.250357Z"}],"euvd":[{"id":"EUVD-2022-32147","description":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.","status":"published","published":"2023-03-29T00:00:00Z","modified":"2025-02-18T17:47:05Z","cvss":[{"version":"3.0","score":8,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T20:53:28.952595Z"}],"ghsa":[{"id":"GHSA-qjg8-7gjq-vxf4","title":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected...","description":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.","status":"published","published":"2023-03-29T21:30:22Z","modified":"2023-04-14T05:01:39Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:54:30.36158Z"}],"nvd":[{"id":"CVE-2022-27646","description":"This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the circled daemon. A crafted circleinfo.txt file can trigger an overflow of a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-15879.","status":"published","published":"2023-03-29T19:15:08.707Z","modified":"2026-06-17T04:37:24.913Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.0","score":8,"vector":"CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:07:37.020555Z"}]}}