CVE-2021-1513
Last modified
CVE-2021-1513 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the vDaemon process of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to cause a device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient handling of malformed packets. EPSS estimates a 1.52% chance of exploitation in the next 30 days.
Description
A vulnerability in the vDaemon process of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to cause a device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to insufficient handling of malformed packets. An attacker could exploit this vulnerability by sending crafted traffic to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Catalyst Sd-Wan Manager | < 20.3.1 |
| Cisco | Catalyst Sd-Wan Manager | >= 20.4, < 20.4.1 |
| Cisco | Catalyst Sd-Wan Manager | >= 20.5, < 20.5.1 |
| Cisco | Sd-Wan Vbond Orchestrator | All versions |
| Cisco | Vsmart Controller Firmware | All versions |
| Cisco | Vedge 100 Firmware | All versions |
| Cisco | Vedge 1000 Firmware | All versions |
| Cisco | Vedge 100b Firmware | All versions |
| Cisco | Vedge 100m Firmware | All versions |
| Cisco | Vedge 100wm Firmware | All versions |
| Cisco | Vedge 2000 Firmware | All versions |
| Cisco | Vedge 5000 Firmware | All versions |
| Cisco | Vedge-100b Firmware | All versions |
| Cisco | Vedge Cloud Firmware | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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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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