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CVE-2023-20262

HIGHCVSS 7.5/10EPSS 0.74%

Last modified

CVE-2023-20262 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the SSH service of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to cause a process crash, resulting in a DoS condition for SSH access only. This vulnerability does not prevent the system from continuing to function, and web UI access is not affected. This vulnerability is due to insufficient resource management when an affected system is in an error condition. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

Description

A vulnerability in the SSH service of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to cause a process crash, resulting in a DoS condition for SSH access only. This vulnerability does not prevent the system from continuing to function, and web UI access is not affected. This vulnerability is due to insufficient resource management when an affected system is in an error condition. An attacker could exploit this vulnerability by sending malicious traffic to the affected system. A successful exploit could allow the attacker to cause the SSH process to crash and restart, resulting in a DoS condition for the SSH service.

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
0.74%

50.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoCatalyst Sd-Wan Manager>= 20.4, < 20.9.3
CiscoSd-Wan Vmanage< 20.3.7
CiscoSd-Wan Vmanage>= 20.10, < 20.11.1
CiscoSd-Wan Vmanage20.12

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-20262?
A vulnerability in the SSH service of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to cause a process crash, resulting in a DoS condition for SSH access only. This vulnerability does not prevent the system from continuing to function, and web UI access is not affected. This vulnerability is due to insufficient resource management when an affected system is in an error condition. An attacker could exploit this vulnerability by sending malicious traffic to the affected system. A successful exploit could allow the attacker to cause the SSH process to crash and restart, resulting in a DoS condition for the SSH service.
How severe is CVE-2023-20262?
CVE-2023-20262 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.
How do I fix CVE-2023-20262?
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-2023-20262?

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

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Source: NVD / NIST