CVE-2011-1651
UnknownEPSS 1.21%
Last modified
CVE-2011-1651 is a vulnerability of currently unknown severity. Cisco IOS XR 3.9.x and 4.0.x before 4.0.3 and 4.1.x before 4.1.1, when an SPA interface processor is installed, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 packet, aka Bug ID CSCto45095.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.
Description
Cisco IOS XR 3.9.x and 4.0.x before 4.0.3 and 4.1.x before 4.1.1, when an SPA interface processor is installed, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 packet, aka Bug ID CSCto45095.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios Xr | 3.0 |
| Cisco | Ios Xr | 3.9.0 |
| Cisco | Ios Xr | 3.9.1 |
| Cisco | Ios Xr | 3.9.2 |
| Cisco | Ios Xr | 4.0.0 |
| Cisco | Ios Xr | 4.0.1 |
| Cisco | Ios Xr | 4.0.2 |
| Cisco | Ios Xr | 4.1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2011-1651?
Cisco IOS XR 3.9.x and 4.0.x before 4.0.3 and 4.1.x before 4.1.1, when an SPA interface processor is installed, allows remote attackers to cause a denial of service (device reload) via a crafted IPv4 packet, aka Bug ID CSCto45095.
How severe is CVE-2011-1651?
Severity scoring for CVE-2011-1651 is pending analysis. The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.
How do I fix CVE-2011-1651?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2011-1651?
Run a free Strix scan to check your systems for this vulnerability.
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