{"cve":"CVE-2018-5441","nvd":{"published":"2018-01-30T20:29:00.457","modified":"2026-06-17T02:00:19.550","status":"Modified","description":"An Improper Validation of Integrity Check Value issue was discovered in PHOENIX CONTACT mGuard firmware versions 7.2 to 8.6.0. mGuard devices rely on internal checksums for verification of the internal integrity of the update packages. Verification may not always be performed correctly, allowing an attacker to modify firmware update packages.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-20","CWE-354"],"references":["http://www.securityfocus.com/bid/102907","https://cert.vde.com/en-us/advisories/vde-2018-001","https://ics-cert.us-cert.gov/advisories/ICSA-18-030-01","http://www.securityfocus.com/bid/102907","https://cert.vde.com/en-us/advisories/vde-2018-001"],"products":["phoenixcontact:mguard_centerport_firmware","phoenixcontact:mguard_core_tx_vpn_firmware","phoenixcontact:mguard_delta_tx\\/tx_firmware","phoenixcontact:mguard_delta_tx\\/tx_vpn_firmware","phoenixcontact:mguard_gt\\/gt_firmware","phoenixcontact:mguard_gt\\/gt_vpn_firmware","phoenixcontact:mguard_pci4000_vpn_firmware","phoenixcontact:mguard_pcie4000_vpn_firmware","phoenixcontact:mguard_rs2000_3g_vpn_firmware","phoenixcontact:mguard_rs2000_4g_vpn_firmware","phoenixcontact:mguard_rs2000_tx\\/tx-b_firmware","phoenixcontact:mguard_rs2000_tx\\/tx_vpn_firmware","phoenixcontact:mguard_rs2005_tx_vpn_firmware","phoenixcontact:mguard_rs4000_3g_vpn_firmware","phoenixcontact:mguard_rs4000_4g_vpn_firmware","phoenixcontact:mguard_rs4000_tx\\/tx-p_firmware","phoenixcontact:mguard_rs4000_tx\\/tx_firmware","phoenixcontact:mguard_rs4000_tx\\/tx_vpn-m_firmware","phoenixcontact:mguard_rs4000_tx\\/tx_vpn_firmware","phoenixcontact:mguard_rs4004_tx\\/dtx_firmware","phoenixcontact:mguard_rs4004_tx\\/dtx_vpn_firmware","phoenixcontact:mguard_smart2_firmware","phoenixcontact:mguard_smart2_vpn_firmware"],"source":"nvd","synced_at":"2026-10-19T20:48:34.567387330+00:00"},"epss":{"cve":"CVE-2018-5441","score":0.00283,"percentile":0.20882,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}