CVE-2023-20185

HIGH
7.4
CVSS Score
Published: July 12, 2023 at 01:50 PM UTC
Updated: June 17, 2026 at 05:29 AM UTC
2 products affected across 1 vendorNx OSNexus 9000 In Aci Mode

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Severity
HIGH7.4
Exploit prediction
EPSS 0.3%

Description

A vulnerability in the Cisco ACI Multi-Site CloudSec encryption feature of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, remote attacker to read or modify intersite encrypted traffic. This vulnerability is due to an issue with the implementation of the ciphers that are used by the CloudSec encryption feature on affected switches. An attacker with an on-path position between the ACI sites could exploit this vulnerability by intercepting intersite encrypted traffic and using cryptanalytic techniques to break the encryption. A successful exploit could allow the attacker to read or modify the traffic that is transmitted between the sites. Cisco has not released and will not release software updates that address this vulnerability.

Remediation

No guide yet

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

CVSS

7.4HIGHcisco
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-330CWE-326

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