CyberRota Analysis
This is a low severity vulnerability with a CVSS score of 2.6. It may be remotely exploitable.
CVE
CVE-2009-4409
Severity
LOW
CVSS
2.6
EPSS
1.36%
Original NVD Description
The (1) CHAP and (2) MS-CHAP-V2 authentication capabilities in the PPP Access Concentrator (PPPAC) function in Internet Initiative Japan SEIL/B1 firmware 1.00 through 2.52 use the same challenge for each authentication attempt, which allows remote attackers to bypass authentication via a replay attack.