CVE-2021-1562

Cisco BroadWorks Application Server Information Disclosure Vulnerability

MEDIUM
4.3
CVSS Score
Published: July 8, 2021 at 06:35 PM UTC
Updated: June 17, 2026 at 03:32 AM UTC
2 products affected across 1 vendorBroadworks Application ServerCisco BroadWorks

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

A vulnerability in the XSI-Actions interface of Cisco BroadWorks Application Server could allow an authenticated, remote attacker to access sensitive information on an affected system. This vulnerability is due to improper input validation and authorization of specific commands that a user can execute within the XSI-Actions interface. An attacker could exploit this vulnerability by authenticating to an affected device and issuing a specific set of commands. A successful exploit could allow the attacker to join a Call Center instance and have calls that they do not have permissions to access distributed to them from the Call Center queue. At the time of publication, Cisco had not released updates that address this vulnerability for Cisco BroadWorks Application Server. However, firmware patches are available.

Affected

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

22.0 ≤ v < 22.0.2020.0823.0 ≤ v < 23.0.2020.0824.0 ≤ v < 24.0.2020.08
Affected range stops below 22.0.2020.08, so it looks safe — our inference, not a vendor statement
Affected range stops below 23.0.2020.08, so it looks safe — our inference, not a vendor statement
Affected range stops below 24.0.2020.08, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.3MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200CWE-20

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