{"id":"CVE-2021-37182","aliases":["EUVD-2021-23756","GHSA-p4gg-xc3g-rqm7"],"status":"published","title":"A vulnerability has been identified in SCALANCE XM408-4C (All versions \u003c V6.5), SCALANCE XM408-4C...","description":"A vulnerability has been identified in SCALANCE XM408-4C (All versions \u003c V6.5), SCALANCE XM408-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XM408-8C (All versions \u003c V6.5), SCALANCE XM408-8C (L3 int.) (All versions \u003c V6.5), SCALANCE XM416-4C (All versions \u003c V6.5), SCALANCE XM416-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2) (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2, L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (L3 int.) (All versions \u003c V6.5), SCALANCE XR552-12M (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2, L3 int.) (All versions \u003c V6.5). The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages. An unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.","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":"2026-11-09","score":0.00644,"percentile":0.51174,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-354"],"published":"2022-06-14T09:21:24Z","modified":"2026-06-17T04:00:12Z","products":[{"vendor":"siemens","product":"scalance xm408-4c"},{"vendor":"siemens","product":"scalance xm408-4c (l3 int.)"},{"vendor":"siemens","product":"scalance xm408-8c"},{"vendor":"siemens","product":"scalance xm408-8c (l3 int.)"},{"vendor":"siemens","product":"scalance xm416-4c"},{"vendor":"siemens","product":"scalance xm416-4c (l3 int.)"},{"vendor":"siemens","product":"scalance xr524-8c, 1x230v"},{"vendor":"siemens","product":"scalance xr524-8c, 1x230v (l3 int.)"},{"vendor":"siemens","product":"scalance xr524-8c, 24v"},{"vendor":"siemens","product":"scalance xr524-8c, 24v (l3 int.)"},{"vendor":"siemens","product":"scalance xr524-8c, 2x230v"},{"vendor":"siemens","product":"scalance xr524-8c, 2x230v (l3 int.)"},{"vendor":"siemens","product":"scalance xr526-8c, 1x230v"},{"vendor":"siemens","product":"scalance xr526-8c, 1x230v (l3 int.)"},{"vendor":"siemens","product":"scalance xr526-8c, 24v"},{"vendor":"siemens","product":"scalance xr526-8c, 24v (l3 int.)"},{"vendor":"siemens","product":"scalance xr526-8c, 2x230v"},{"vendor":"siemens","product":"scalance xr526-8c, 2x230v (l3 int.)"},{"vendor":"siemens","product":"scalance xr528-6m"},{"vendor":"siemens","product":"scalance xr528-6m (2hr2)"},{"vendor":"siemens","product":"scalance xr528-6m (2hr2, l3 int.)"},{"vendor":"siemens","product":"scalance xr528-6m (l3 int.)"},{"vendor":"siemens","product":"scalance xr552-12m"},{"vendor":"siemens","product":"scalance xr552-12m (2hr2)"},{"vendor":"siemens","product":"scalance xr552-12m (2hr2, l3 int.)"},{"vendor":"siemens","product":"scalance_xm408-4c_firmware"},{"vendor":"siemens","product":"scalance_xm408-4c_l3_firmware"},{"vendor":"siemens","product":"scalance_xm408-8c_firmware"},{"vendor":"siemens","product":"scalance_xm408-8c_l3_firmware"},{"vendor":"siemens","product":"scalance_xm416-4c_firmware"},{"vendor":"siemens","product":"scalance_xm416-4c_l3_firmware"},{"vendor":"siemens","product":"scalance_xr524-8c_firmware"},{"vendor":"siemens","product":"scalance_xr524-8c_l3_firmware"},{"vendor":"siemens","product":"scalance_xr526-8c_firmware"},{"vendor":"siemens","product":"scalance_xr526-8c_l3_firmware"},{"vendor":"siemens","product":"scalance_xr528-6m_2hr2_firmware"},{"vendor":"siemens","product":"scalance_xr528-6m_2hr2_l3_firmware"},{"vendor":"siemens","product":"scalance_xr528-6m_firmware"},{"vendor":"siemens","product":"scalance_xr528-6m_l3_firmware"},{"vendor":"siemens","product":"scalance_xr552-12m_2hr2_firmware"},{"vendor":"siemens","product":"scalance_xr552-12m_2hr2_l3_firmware"},{"vendor":"siemens","product":"scalance_xr552-12m_firmware"}],"references":[{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-145224.pdf","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-37182"},{"url":"https://github.com/advisories/GHSA-p4gg-xc3g-rqm7"}],"sources":{"cve":[{"id":"CVE-2021-37182","description":"A vulnerability has been identified in SCALANCE XM408-4C (All versions \u003c V6.5), SCALANCE XM408-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XM408-8C (All versions \u003c V6.5), SCALANCE XM408-8C (L3 int.) (All versions \u003c V6.5), SCALANCE XM416-4C (All versions \u003c V6.5), SCALANCE XM416-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2) (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2, L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (L3 int.) (All versions \u003c V6.5), SCALANCE XR552-12M (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2, L3 int.) (All versions \u003c V6.5). The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages. An unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.","status":"published","published":"2022-06-14T09:21:24Z","modified":"2024-08-04T01:16:03.731Z","cwes":["CWE-354"],"updated_at":"2026-11-02T14:32:58.359368Z"}],"euvd":[{"id":"EUVD-2021-23756","description":"A vulnerability has been identified in SCALANCE XM408-4C (All versions \u003c V6.5), SCALANCE XM408-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XM408-8C (All versions \u003c V6.5), SCALANCE XM408-8C (L3 int.) (All versions \u003c V6.5), SCALANCE XM416-4C (All versions \u003c V6.5), SCALANCE XM416-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2) (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2, L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (L3 int.) (All versions \u003c V6.5), SCALANCE XR552-12M (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2, L3 int.) (All versions \u003c V6.5). The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages. An unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.","status":"published","published":"2022-06-14T09:21:24Z","modified":"2024-08-04T01:16:03Z","updated_at":"2026-11-03T03:24:28.314716Z"}],"ghsa":[{"id":"GHSA-p4gg-xc3g-rqm7","title":"A vulnerability has been identified in SCALANCE XM408-4C (All versions \u003c V6.5), SCALANCE XM408-4C...","description":"A vulnerability has been identified in SCALANCE XM408-4C (All versions \u003c V6.5), SCALANCE XM408-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XM408-8C (All versions \u003c V6.5), SCALANCE XM408-8C (L3 int.) (All versions \u003c V6.5), SCALANCE XM416-4C (All versions \u003c V6.5), SCALANCE XM416-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2) (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2, L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (L3 int.) (All versions \u003c V6.5), SCALANCE XR552-12M (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2, L3 int.) (All versions \u003c V6.5). The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages. An unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.","status":"published","published":"2022-06-15T00:00:27Z","modified":"2023-01-27T05:04:41Z","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"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T14:42:31.020352Z"}],"nvd":[{"id":"CVE-2021-37182","description":"A vulnerability has been identified in SCALANCE XM408-4C (All versions \u003c V6.5), SCALANCE XM408-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XM408-8C (All versions \u003c V6.5), SCALANCE XM408-8C (L3 int.) (All versions \u003c V6.5), SCALANCE XM416-4C (All versions \u003c V6.5), SCALANCE XM416-4C (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (All versions \u003c V6.5), SCALANCE XR524-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR524-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 1x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (All versions \u003c V6.5), SCALANCE XR526-8C, 24V (L3 int.) (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (All versions \u003c V6.5), SCALANCE XR526-8C, 2x230V (L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2) (All versions \u003c V6.5), SCALANCE XR528-6M (2HR2, L3 int.) (All versions \u003c V6.5), SCALANCE XR528-6M (L3 int.) (All versions \u003c V6.5), SCALANCE XR552-12M (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2) (All versions \u003c V6.5), SCALANCE XR552-12M (2HR2, L3 int.) (All versions \u003c V6.5). The OSPF protocol implementation in affected devices fails to verify the checksum and length fields in the OSPF LS Update messages. An unauthenticated remote attacker could exploit this vulnerability to cause interruptions in the network by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device.","status":"published","published":"2022-06-14T10:15:17.747Z","modified":"2026-06-17T04:00:12.4Z","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":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-354"],"updated_at":"2026-11-02T14:07:06.501652Z"}]}}