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CVE-2021-1273

HIGHCVSS 8.6/10EPSS 1.39%

Last modified

CVE-2021-1273 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.. EPSS estimates a 1.39% chance of exploitation in the next 30 days.

Description

Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Metrics

CVSS 3.1
8.6/10

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

EPSS Probability
1.39%

68.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoIos Xe Sd-WanAll versions
CiscoSd-Wan Firmware18.3.5
CiscoSd-Wan Firmware18.3.8
CiscoSd-Wan Firmware18.4.1
CiscoSd-Wan Firmware18.4.4
CiscoSd-Wan Firmware18.4.5
CiscoSd-Wan Firmware19.2.0
CiscoSd-Wan Firmware19.2.1
CiscoSd-Wan Firmware19.2.2
CiscoSd-Wan Firmware19.2.99
CiscoSd-Wan Firmware20.1.0
CiscoSd-Wan Vsmart Controller FirmwareAll versions
CiscoCatalyst Sd-Wan ManagerAll versions
CiscoSd-Wan Vbond OrchestratorAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-1273?
Multiple vulnerabilities in Cisco SD-WAN products could allow an unauthenticated, remote attacker to execute denial of service (DoS) attacks against an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
How severe is CVE-2021-1273?
CVE-2021-1273 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 1.39% probability of exploitation in the next 30 days.
How do I fix CVE-2021-1273?
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-2021-1273?

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

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Source: NVD / NIST