Nec Aterm WG1200HS4 Firmware vulnerabilities

2 CVEs affecting Nec Aterm WG1200HS4 Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-4621, published 2026-03-27.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2026-4621, published 2026-03-27. Medium severity, CVSS 5.6. EPSS: 0.3% chance of exploitation in the next 30 days. Hidden Functionality vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to enable telnet via network.
• CVE-2026-4309, published 2026-03-27. Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days. Missing Authorization vulnerability in NEC Platforms, Ltd. Aterm Series allows a attacker to get a specific device information and change the settings via network.