CVE-2009-4292

Buffer overflow in the URL filtering function in Internet Initiative Japan SEIL/X1, SEIL/X2, and SEIL/B1 firmware 2.40 through 2.51 allows remote attackers to execute arbitrary code via unspecified vectors.

Published: 2009-12-10 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4292 is rated High Risk (66.8/100): CVSS Critical severity, with high exploitation likelihood (EPSS 4.76%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-4292

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 2026-06-15 6.94% 4.76% -2.18%
2 2026-05-01 6.22% 6.94% +0.72%
3 2025-03-30 — 6.22% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4292

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-4292

Affected software / configurations for CVE-2009-4292

Vendor Product Version Raw CPE
iij seil\/x1_firmware 2.40 cpe:2.3:a:iij:seil\/x1_firmware:2.40:*:*:*:*:*:*:*
iij seil\/x1_firmware 2.41 cpe:2.3:a:iij:seil\/x1_firmware:2.41:*:*:*:*:*:*:*
iij seil\/x1_firmware 2.42 cpe:2.3:a:iij:seil\/x1_firmware:2.42:*:*:*:*:*:*:*
iij seil\/x1_firmware 2.50 cpe:2.3:a:iij:seil\/x1_firmware:2.50:*:*:*:*:*:*:*
iij seil\/x1_firmware 2.51 cpe:2.3:a:iij:seil\/x1_firmware:2.51:*:*:*:*:*:*:*
iij seil\/x1 — cpe:2.3:h:iij:seil\/x1:*:*:*:*:*:*:*:*
iij seil\/b1_firmware 2.40 cpe:2.3:a:iij:seil\/b1_firmware:2.40:*:*:*:*:*:*:*
iij seil\/b1_firmware 2.41 cpe:2.3:a:iij:seil\/b1_firmware:2.41:*:*:*:*:*:*:*
iij seil\/b1_firmware 2.42 cpe:2.3:a:iij:seil\/b1_firmware:2.42:*:*:*:*:*:*:*
iij seil\/b1_firmware 2.50 cpe:2.3:a:iij:seil\/b1_firmware:2.50:*:*:*:*:*:*:*
iij seil\/b1_firmware 2.51 cpe:2.3:a:iij:seil\/b1_firmware:2.51:*:*:*:*:*:*:*
iij seil\/b1 — cpe:2.3:h:iij:seil\/b1:*:*:*:*:*:*:*:*
iij seil\/x2_firmware 2.40 cpe:2.3:a:iij:seil\/x2_firmware:2.40:*:*:*:*:*:*:*
iij seil\/x2_firmware 2.41 cpe:2.3:a:iij:seil\/x2_firmware:2.41:*:*:*:*:*:*:*
iij seil\/x2_firmware 2.42 cpe:2.3:a:iij:seil\/x2_firmware:2.42:*:*:*:*:*:*:*
iij seil\/x2_firmware 2.50 cpe:2.3:a:iij:seil\/x2_firmware:2.50:*:*:*:*:*:*:*
iij seil\/x2_firmware 2.51 cpe:2.3:a:iij:seil\/x2_firmware:2.51:*:*:*:*:*:*:*
iij seil\/x2 — cpe:2.3:h:iij:seil\/x2:*:*:*:*:*:*:*:*

References for CVE-2009-4292

cvelogic Threat Intelligence