{"id":"CVE-2021-41545","aliases":["EUVD-2021-28563","GHSA-hw79-77g6-22xq"],"status":"published","title":"A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.142.5-22), Desigo PXC3 ...","description":"A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.142.5-22), Desigo PXC3 (All versions \u003c V01.21.142.4-18), Desigo PXC4 (All versions \u003c V02.20.142.10-10884), Desigo PXC5 (All versions \u003c V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.0093,"percentile":0.60903,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-248"],"published":"2022-05-10T09:46:45Z","modified":"2026-06-17T04:08:37Z","products":[{"vendor":"siemens","product":"desigo dxr2"},{"vendor":"siemens","product":"desigo pxc3"},{"vendor":"siemens","product":"desigo pxc4"},{"vendor":"siemens","product":"desigo pxc5"},{"vendor":"siemens","product":"desigo_dxr2_firmware"},{"vendor":"siemens","product":"desigo_pxc3_firmware"},{"vendor":"siemens","product":"desigo_pxc4_firmware"},{"vendor":"siemens","product":"desigo_pxc5_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-662649.pdf","tags":["x_refsource_MISC","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41545"},{"url":"https://github.com/advisories/GHSA-hw79-77g6-22xq"}],"sources":{"cve":[{"id":"CVE-2021-41545","description":"A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.142.5-22), Desigo PXC3 (All versions \u003c V01.21.142.4-18), Desigo PXC4 (All versions \u003c V02.20.142.10-10884), Desigo PXC5 (All versions \u003c V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.","status":"published","published":"2022-05-10T09:46:45Z","modified":"2024-08-04T03:15:28.25Z","cwes":["CWE-248"],"updated_at":"2026-11-02T14:32:59.105382Z"}],"euvd":[{"id":"EUVD-2021-28563","description":"A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.142.5-22), Desigo PXC3 (All versions \u003c V01.21.142.4-18), Desigo PXC4 (All versions \u003c V02.20.142.10-10884), Desigo PXC5 (All versions \u003c V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.","status":"published","published":"2022-05-10T09:46:45Z","modified":"2024-08-04T03:15:28Z","updated_at":"2026-11-03T03:24:17.663217Z"}],"ghsa":[{"id":"GHSA-hw79-77g6-22xq","title":"A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.142.5-22), Desigo PXC3 ...","description":"A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.142.5-22), Desigo PXC3 (All versions \u003c V01.21.142.4-18), Desigo PXC4 (All versions \u003c V02.20.142.10-10884), Desigo PXC5 (All versions \u003c V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.","status":"published","published":"2022-05-11T00:01:41Z","modified":"2023-02-01T05:02:12Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T14:49:51.819251Z"}],"nvd":[{"id":"CVE-2021-41545","description":"A vulnerability has been identified in Desigo DXR2 (All versions \u003c V01.21.142.5-22), Desigo PXC3 (All versions \u003c V01.21.142.4-18), Desigo PXC4 (All versions \u003c V02.20.142.10-10884), Desigo PXC5 (All versions \u003c V02.20.142.10-10884). When the controller receives a specific BACnet protocol packet, an exception causes the BACnet communication function to go into a “out of work” state and could result in the controller going into a “factory reset” state.","status":"published","published":"2022-05-10T11:15:07.84Z","modified":"2026-06-17T04:08:37.44Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-248"],"updated_at":"2026-11-02T14:07:06.029737Z"}]}}