Buffer overflow in the PPP Access Concentrator (PPPAC) on the SEIL/x86 with firmware before 2.82, SEIL/X1 with firmware before 4.32, SEIL/X2 with firmware before 4.32, SEIL/B1 with firmware before 4.32, SEIL/Turbo with firmware before 2.16, and SEIL/neu 2FE Plus with firmware before 2.16 allows remote attackers to execute arbitrary code via a crafted L2TP message.
Conclusion & alert: CVE-2013-4709 is rated Moderate Risk (57.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.79%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 2.48% | 2.79% | +0.31% |
| 2 | 2025-03-29 | 2.79% | 2.48% | -0.31% |
| 3 | 2025-03-17 | — | 2.79% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| iij | seil_x2_firmware | 1.00 | cpe:2.3:o:iij:seil_x2_firmware:1.00:*:*:*:*:*:*:* |
| iij | seil_x2_firmware | 4.31 | cpe:2.3:o:iij:seil_x2_firmware:4.31:*:*:*:*:*:*:* |
| iij | seil\/x2 | — | cpe:2.3:h:iij:seil\/x2:*:*:*:*:*:*:*:* |
| iij | seil\%2fturbo_firmware | 2.05 | cpe:2.3:o:iij:seil\%2fturbo_firmware:2.05:*:*:*:*:*:*:* |
| iij | seil\%2fturbo_firmware | 2.15 | cpe:2.3:o:iij:seil\%2fturbo_firmware:2.15:*:*:*:*:*:*:* |
| iij | seil\/turbo | — | cpe:2.3:h:iij:seil\/turbo:*:*:*:*:*:*:*:* |
| iij | seil\%2fneu_2fe_plus_firmware | 2.05 | cpe:2.3:o:iij:seil\%2fneu_2fe_plus_firmware:2.05:*:*:*:*:*:*:* |
| iij | seil\%2fneu_2fe_plus_firmware | 2.15 | cpe:2.3:o:iij:seil\%2fneu_2fe_plus_firmware:2.15:*:*:*:*:*:*:* |
| iij | seil\/neu_2fe_plus | — | cpe:2.3:h:iij:seil\/neu_2fe_plus:*:*:*:*:*:*:*:* |
| iij | seil\%2fb1_firmware | 1.00 | cpe:2.3:o:iij:seil\%2fb1_firmware:1.00:*:*:*:*:*:*:* |
| iij | seil\%2fb1_firmware | 4.31 | cpe:2.3:o:iij:seil\%2fb1_firmware:4.31:*:*:*:*:*:*:* |
| iij | seil\/b1 | — | cpe:2.3:h:iij:seil\/b1:*:*:*:*:*:*:*:* |
| iij | seil\%2fx86_firmware | 1.00 | cpe:2.3:o:iij:seil\%2fx86_firmware:1.00:*:*:*:*:*:*:* |
| iij | seil\%2fx86_firmware | 2.81 | cpe:2.3:o:iij:seil\%2fx86_firmware:2.81:*:*:*:*:*:*:* |
| iij | seil\/x86 | — | cpe:2.3:h:iij:seil\/x86:*:*:*:*:*:*:*:* |
| iij | seil\%2fx1_firmware | 1.00 | cpe:2.3:o:iij:seil\%2fx1_firmware:1.00:*:*:*:*:*:*:* |
| iij | seil\%2fx1_firmware | 4.31 | cpe:2.3:o:iij:seil\%2fx1_firmware:4.31:*:*:*:*:*:*:* |
| iij | seil\/x1 | — | cpe:2.3:h:iij:seil\/x1:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| http://jvn.jp/en/jp/JVN43152129/index.html | Vendor Advisory |
| http://jvndb.jvn.jp/jvndb/JVNDB-2013-000092 | Vendor Advisory |
| http://www.seil.jp/support/security/a01396.html | Vendor Advisory |