HIGH
CVE-2011-1323
CWE-20Published: May 9, 2011· Updated: Jun 16, 2026
7.8
CVSS v3.1
Official Description
Yamaha RTX, RT, SRT, RTV, RTW, and RTA series routers with firmware 6.x through 10.x, and NEC IP38X series routers with firmware 6.x through 10.x, do not properly handle IP header options, which allows remote attackers to cause a denial of service (device reboot) via a crafted option that triggers access to an invalid memory location.
Technical Analysis
CVE-2011-1323 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityNone
IntegrityNone
AvailabilityC
AV:N/AC:L/Au:N/C:N/I:N/A:C
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
All References (6)
Quick Facts
CVE IDCVE-2011-1323
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-20
CISA KEVNo
Affected2 vendor(s)
PublishedMay 9, 2011
Related CVEs (CWE-20)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2011-1323 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.