CVE-2014-7256: Iij Seil b1 Firmware

High severity, CVSS 7.8. EPSS: 1.8% chance of exploitation in the next 30 days.

The (1) PPP Access Concentrator (PPPAC) and (2) Dial-Up Networking Internet Initiative Japan Inc. SEIL series routers SEIL/x86 Fuji 1.00 through 3.22; SEIL/X1, SEIL/X2, and SEIL/B1 1.00 through 4.62; SEIL/Turbo 1.82 through 2.18; and SEIL/neu 2FE Plus 1.82 through 2.18 allow remote attackers to cause a denial of service (restart) via crafted (a) GRE or (b) MPPE packets.

Affected products

• Iij Seil b1 Firmware: up to and including 4.61
• Iij Seil Plus
• Iij Seil Plus Firmware: version 1.82 only; version 1.83 only; version 1.84 only; version 1.85 only; version 1.86 only; version 1.87 only; …
• Iij Seil Turbo
• Iij Seil Turbo Firmware: version 1.82 only; version 1.83 only; version 1.84 only; version 1.85 only; version 1.86 only; version 1.87 only; …
• Iij Seil x1 Firmware: up to and including 4.61
• Iij Seil x2 Firmware: up to and including 4.61
• Iij Seil x86 Fuji Firmware: up to and including 3.21

Published 2014-12-05. Last modified 2026-06-17.