CVE-2024-20497

Cisco Expressway Edge Improper Authorization Vulnerability

MEDIUM
4.3
CVSS Score
Published: September 4, 2024 at 04:29 PM UTC
Updated: June 17, 2026 at 07:07 AM UTC
2 products affected across 1 vendorExpressway ETelepresence Video Communication Server

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

A vulnerability in Cisco Expressway Edge (Expressway-E) could allow an authenticated, remote attacker to masquerade as another user on an affected system. This vulnerability is due to inadequate authorization checks for Mobile and Remote Access (MRA) users. An attacker could exploit this vulnerability by running a series of crafted commands. A successful exploit could allow the attacker to intercept calls that are destined for a particular phone number or to make phone calls and have that phone number appear on the caller ID. To successfully exploit this vulnerability, the attacker must be an MRA user on an affected system.

Affected

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

v < 15.2
Affected range stops below 15.2, so it looks safe — our inference, not a vendor statement
X12.5.0X12.5.1X12.5.2X12.5.3X12.5.4X12.5.5X12.5.6X12.5.7X12.5.8X12.5.9X12.6.0X12.6.1X12.6.2X12.6.3X12.6.4X12.7.0X12.7.1X14.0.0X14.0.1X14.0.10X14.0.11X14.0.2X14.0.3X14.0.4X14.0.5X14.0.6X14.0.7X14.0.8X14.0.9X14.2.0X14.2.1X14.2.2X14.2.5X14.2.6X14.2.7X14.3.0X14.3.1X14.3.2X14.3.3X14.3.4X14.3.5X15.0.0X15.0.1X15.0.2X15.0.3X8.1X8.1.1X8.1.2X8.10.0X8.10.1X8.10.2X8.10.3X8.10.4X8.11.0X8.11.1X8.11.2X8.11.3X8.11.4X8.2X8.2.1X8.2.2X8.5X8.5.1X8.5.2X8.5.3X8.6X8.6.1X8.7X8.7.1X8.7.2X8.7.3X8.8X8.8.1X8.8.2X8.8.3X8.9X8.9.1X8.9.2

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
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-285

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