Vulnerability Monitor

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CVE-2021-1513


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.


Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 22 products from cisco, from cisco, from cisco and 19 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2021, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2021-05-06T13:15:10.850

Last Modified

2024-11-21T05:44:31.207

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-20
  • Type: Primary
    CWE-20

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco catalyst_sd-wan_manager < 20.3.1 Yes
Application cisco catalyst_sd-wan_manager < 20.4.1 Yes
Application cisco catalyst_sd-wan_manager < 20.5.1 Yes
Application cisco sd-wan_vbond_orchestrator - Yes
Operating System cisco vsmart_controller_firmware - Yes
Hardware cisco vsmart_controller - No
Operating System cisco vedge_100_firmware - Yes
Hardware cisco vedge_100 - No
Operating System cisco vedge_1000_firmware - Yes
Hardware cisco vedge_1000 - No
Operating System cisco vedge_100b_firmware - Yes
Hardware cisco vedge_100b - No
Operating System cisco vedge_100m_firmware - Yes
Hardware cisco vedge_100m - No
Operating System cisco vedge_100wm_firmware - Yes
Hardware cisco vedge_100wm - No
Operating System cisco vedge_2000_firmware - Yes
Hardware cisco vedge_2000 - No
Operating System cisco vedge_5000_firmware - Yes
Hardware cisco vedge_5000 - No
Operating System cisco vedge-100b_firmware - Yes
Hardware cisco vedge-100b - No
Operating System cisco vedge_cloud_firmware - Yes
Hardware cisco vedge_cloud - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.