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CVE-2023-20262

HIGH
7.5
CVSS Score
Published: September 27, 2023 at 05:16 PM UTC
Updated: June 17, 2026 at 05:30 AM UTC
4 products affected across 1 vendorCatalyst Sd WAN ManagerCisco SD-WAN vManageCisco SD-WAN Solution

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Catalyst Sd WAN Manager· Cisco
95%
20.4 ≤ v < 20.9.3
Affected range stops below 20.9.3, so it looks safe — our inference, not a vendor statement
Cisco SD-WAN vManage· Cisco
95%
v < 20.3.720.10 ≤ v < 20.11.117.2.1017.2.417.2.517.2.617.2.717.2.817.2.918.2.018.3.018.3.118.3.1.118.3.318.3.3.118.3.418.3.518.3.6.118.3.718.3.818.4.018.4.0.118.4.118.4.318.4.30218.4.30318.4.418.4.518.4.619.1.019.2.019.2.09719.2.09919.2.119.2.219.2.319.2.3119.2.419.2.92919.3.020.1.120.1.1.120.1.1220.1.220.1.320.10.120.10.1.120.10.1.220.1220.3.120.3.220.3.2.120.3.320.3.3.120.3.420.3.4.120.3.4.220.3.4.320.3.520.3.5.120.3.620.4.120.4.1.120.4.1.220.4.220.4.2.120.4.2.220.4.2.320.5.120.5.1.120.5.1.220.6.120.6.1.120.6.1.220.6.220.6.2.120.6.2.220.6.3
Affected range stops below 20.11.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 20.3.7, so it looks safe — our inference, not a vendor statement
Cisco SD-WAN Solution· Cisco
60%
17.2.1017.2.417.2.517.2.617.2.717.2.817.2.918.2.018.3.018.3.118.3.318.3.3.118.3.418.3.518.3.618.3.718.3.818.4.018.4.0.118.4.118.4.318.4.30218.4.30318.4.418.4.518.4.619.1.019.2.019.2.09719.2.09919.2.119.2.219.2.319.2.3119.2.419.2.92919.3.020.1.120.1.1.120.1.1120.1.1220.1.220.1.320.1.3.120.10.1.220.3.120.3.220.3.2.120.3.320.3.3.120.3.420.3.4.120.3.4.220.3.4.320.3.520.3.5.120.3.620.4.120.4.1.120.4.1.220.4.220.4.2.120.4.2.220.4.2.320.5.120.5.1.120.5.1.220.6.120.6.1.120.6.1.220.6.220.6.2.120.6.2.220.6.320.6.3.120.6.3.220.6.3.320.6.3.420.6.420.6.4.120.6.4.220.6.520.6.5.220.6.5.420.6.5.520.7.120.7.1.120.7.220.8.120.9.120.9.2.3
Sd WAN Vsmart Controller· Cisco
60%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-vman-sc-LRLfu2z

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-399NVD-CWE-noinfo

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