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CVE-2021-1513

HIGHCVSS 7.5/10EPSS 1.52%

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
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.52%

71.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoCatalyst Sd-Wan Manager< 20.3.1
CiscoCatalyst Sd-Wan Manager>= 20.4, < 20.4.1
CiscoCatalyst Sd-Wan Manager>= 20.5, < 20.5.1
CiscoSd-Wan Vbond OrchestratorAll versions
CiscoVsmart Controller FirmwareAll versions
CiscoVedge 100 FirmwareAll versions
CiscoVedge 1000 FirmwareAll versions
CiscoVedge 100b FirmwareAll versions
CiscoVedge 100m FirmwareAll versions
CiscoVedge 100wm FirmwareAll versions
CiscoVedge 2000 FirmwareAll versions
CiscoVedge 5000 FirmwareAll versions
CiscoVedge-100b FirmwareAll versions
CiscoVedge Cloud FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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.
How severe is CVE-2021-1513?
CVE-2021-1513 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1513?
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.

Are you affected by CVE-2021-1513?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST