7.1CVSSHIGH
Description
Internet Initiative Japan SEIL/X1, SEIL/X2, and SEIL/B1 firmware 2.30 through 2.51, when NAT is enabled, allows remote attackers to cause a denial of service (system restart) via crafted GRE packets.
CVSS Vector Breakdown
Exploitability
AV:NAccess VectorNetwork
AC:MAccess ComplexityMedium
Au:NAuthenticationNone
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:CAvailabilityComplete
Weaknesses
Affected Products
and 2 more affected products View all →
Exploitability
Official Patch Available
References
http://www.vupen.com/english/advisories/2009/3111
vupen.com
http://www.seil.jp/seilseries/security/2009/a00674.php
seil.jp
http://osvdb.org/59361
osvdb.org
and 4 more references View all →
Timeline
Published
Dec 10, 2009
Last Updated
Apr 23, 2026
Unlock Complete Vulnerability Intelligence
Get the full picture for CVE-2009-4293 and every CVE in our database. Create a free account — no credit card required.
Create Free AccountPlain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows