CVE-2013-4708: n/a vulnerability

CVE-2013-4708: The PPP Access Concentrator (PPPAC) in Internet Initiative Japan Inc.

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.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 17, 2024, 01:15 UTC (UTC+00:00)

Security readout for executives and security teams

Certain Internet Initiative Japan SEIL routers/access devices can generate predictable values in PPPAC RADIUS authentication. If an attacker can observe RADIUS traffic, they may bypass authentication. The main business concern is unauthorized network access on older SEIL deployments. Exposure is likely limited to organizations still running the named SEIL products and versions with PPPAC using RADIUS authentication. The provided data does not identify other vendors or products. Treat as a targeted legacy infrastructure risk. Prioritize if SEIL PPPAC with RADIUS is still in use, especially where RADIUS traffic could be observed by untrusted users or networks. Mitigation focus: Inventory SEIL devices and compare firmware against the affected version ranges.; Check the SEIL and JVN advisories for vendor-supported fixes or replacement guidance.; Restrict who can observe or reach RADIUS and PPPAC-related network paths..

Prepared: Jun 14, 2026, 15:32 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 1, 2013, 17:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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