CVE-2013-4708

What it is

The PPP Access Concentrator (PPPAC) in Internet Initiative Japan Inc. SEIL/x86 1.00 through 2.80, SEIL/X1 1.00 through 4.30, SEIL/X2 1.00 through 4.30, SEIL/B1 1.00 through 4.30, SEIL/Turbo 1.80 through 2.15, and SEIL/neu 2FE Plus 1.80 through 2.15 generates predictable random numbers, which allows remote attackers to bypass RADIUS authentication by sniffing RADIUS traffic.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

1.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2013-10-01 17:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:57 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 1.3% in the next 30 days (EPSS).
• Severity: 4.0 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2013-10-01 17:55 UTC

Last modified

2026-06-16 23:57 UTC

Exploit probability

1.3% · EPSS, next 30 days

Weakness

CWE-310

Record status

Modified

Affected

• Iij seil\%2fx1 Firmware 1.00
• Iij seil\%2fx1 Firmware 4.30
• Iij seil\/x1
• Iij seil\%2fb1 Firmware 1.00
• Iij seil\%2fb1 Firmware 4.30
• Iij seil\/b1
• Iij seil\%2fx2 Firmware 1.00
• Iij seil\%2fx2 Firmware 4.30

Attack profile CVSS 2.0 · 4.0

Attack vector

Network

Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2013-4708.md and follow it. Check whether this project is affected by CVE-2013-4708. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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