TSUBAME Report Overflow (Oct-Dec 2025)
ID: 2b90dfb7-ee5d-58de-9eb8-d19172649393
STIX ID: report--2b90dfb7-ee5d-58de-9eb8-d19172649393
Feed Name: JPCERT Blog
Threat Score
This TSUBAME monitoring report (Oct–Dec 2025) documents a temporary spike in Telnet traffic from many DVR/NVR devices—often with outdated firmware—across domestic and international sensors, highlights common scanned ports (22, 23, 80, 443, 8080, etc.), and recommends checking and updating device firmware to mitigate exposure to known vulnerabilities.
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