CVE-2009-4292

9.3 HIGH 5% exploit odds Fix listed Memory safety Device

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 4.8% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2009-12-10 23:30 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 23:13 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 4.8% in the next 30 days (EPSS).
Severity: 9.3 HIGH (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2009-12-10 23:30 UTC
Last modified: 2026-06-16 23:13 UTC
Exploit probability: 4.8% · EPSS, next 30 days
Weakness: CWE-119 · Buffer errors
Record status: Modified

Affected

Iij seil\/x1 Firmware 2.40
Iij seil\/x1 Firmware 2.41
Iij seil\/x1 Firmware 2.42
Iij seil\/x1 Firmware 2.50
Iij seil\/x1 Firmware 2.51
Iij seil\/x1
Iij seil\/b1 Firmware 2.40
Iij seil\/b1 Firmware 2.41

Attack profile CVSS 2.0 · 9.3

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Complete
Integrity: Complete
Availability: Complete

Raw vector

AV:N/AC:M/Au:N/C:C/I:C/A:C

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2009-4292.md and follow it. Check whether this project is affected by CVE-2009-4292. 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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Fix and advisories

References

NVD record · CVE.org record