Mu5250
Monthly
Unauthorized information disclosure in the ZTE MU5250 mobile broadband modem (firmware BD_FLYMODEMMU5250V1.0.0B27) allows remote attackers to retrieve protected data because an access-control mechanism is improperly configured, exposing information without any authentication. No public exploit identified at time of analysis, and EPSS scores this at just 0.02% (5th percentile), consistent with CISA's SSVC assessment of no observed exploitation and only partial technical impact. Despite a network-reachable, no-authentication CVSS of 7.5, the vendor-reported issue reflects a device-specific misconfiguration rather than a broadly weaponized flaw.
Improper permission control on the ZTE MU5250 web management interface allows an adjacent-network attacker with low-level credentials to modify device configuration beyond their authorized scope, resulting in high availability impact and low integrity impact. Affected firmware is confirmed as BD_FLYMODEMMU5250V1.0.0B27, self-disclosed by ZTE via their security bulletin. No public exploit code or CISA KEV listing exists at time of analysis, and exploitation is constrained to adjacent network access with some level of authenticated access per the CVSS vector.
Unauthorized information disclosure in the ZTE MU5250 mobile broadband modem (firmware BD_FLYMODEMMU5250V1.0.0B27) allows remote attackers to retrieve protected data because an access-control mechanism is improperly configured, exposing information without any authentication. No public exploit identified at time of analysis, and EPSS scores this at just 0.02% (5th percentile), consistent with CISA's SSVC assessment of no observed exploitation and only partial technical impact. Despite a network-reachable, no-authentication CVSS of 7.5, the vendor-reported issue reflects a device-specific misconfiguration rather than a broadly weaponized flaw.
Improper permission control on the ZTE MU5250 web management interface allows an adjacent-network attacker with low-level credentials to modify device configuration beyond their authorized scope, resulting in high availability impact and low integrity impact. Affected firmware is confirmed as BD_FLYMODEMMU5250V1.0.0B27, self-disclosed by ZTE via their security bulletin. No public exploit code or CISA KEV listing exists at time of analysis, and exploitation is constrained to adjacent network access with some level of authenticated access per the CVSS vector.