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CVE-2023-20003

Cisco Business Wireless Access Points Social Login Guest User Authentication Bypass Vulnerability

HIGH
8.8
CVSS Score
Published: May 18, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:29 AM UTC
17 products affected across 1 vendorBusiness 151AXM FirmwareBusiness 140AC Access Point FirmwareBusiness 142ACM Firmware

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Severity
HIGH8.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A vulnerability in the social login configuration option for the guest users of Cisco Business Wireless Access Points (APs) could allow an unauthenticated, adjacent attacker to bypass social login authentication. This vulnerability is due to a logic error with the social login implementation. An attacker could exploit this vulnerability by attempting to authenticate to an affected device. A successful exploit could allow the attacker to access the Guest Portal without authentication.

Affected

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

Business 140AC Access Point Firmware· Cisco
95%
v < 10.8.1.0
Affected range stops below 10.8.1.0, so it looks safe — our inference, not a vendor statement
cisco-business-140ac-access-point (same device)
Business 141ACM Firmware· Cisco
95%
v < 10.8.1.0
Affected range stops below 10.8.1.0, so it looks safe — our inference, not a vendor statement
cisco-business-141acm (same device)
Business 142ACM Firmware· Cisco
95%
v < 10.8.1.0
Affected range stops below 10.8.1.0, so it looks safe — our inference, not a vendor statement
cisco-business-142acm (same device)
Business 143ACM Firmware· Cisco
95%
v < 10.8.1.0
Affected range stops below 10.8.1.0, so it looks safe — our inference, not a vendor statement
cisco-business-143acm (same device)
Business 145AC Access Point Firmware· Cisco
95%
v < 10.8.1.0
Affected range stops below 10.8.1.0, so it looks safe — our inference, not a vendor statement
cisco-business-145ac-access-point (same device)
Business 150AX Access Point Firmware· Cisco
95%
10.4.2
cisco-business-150ax-access-point (same device)
Business 151AXM Firmware· Cisco
95%
10.4.2
cisco-business-151axm (same device)
Business 240AC Access Point Firmware· Cisco
95%
v < 10.8.1.0
Affected range stops below 10.8.1.0, so it looks safe — our inference, not a vendor statement
cisco-business-240ac-access-point (same device)
Business Wireless Access Point· Cisco
60%
All versions
Business 140Ac Access Point· Ciscodevice
80%
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-cbw-auth-bypass-ggnAfdZ

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-288CWE-306

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