// For flags

CVE-2023-20047

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the Link Layer Discovery Protocol (LLDP) feature of Cisco Webex Room Phone and Cisco Webex Share devices could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device.
This vulnerability is due to insufficient resource allocation. An attacker could exploit this vulnerability by sending crafted LLDP traffic to an affected device. A successful exploit could allow the attacker to exhaust the memory resources of the affected device, resulting in a crash of the LLDP process. If the affected device is configured to support LLDP only, this could cause an interruption to inbound and outbound calling. By default, these devices are configured to support both Cisco Discovery Protocol and LLDP. To recover operational state, the affected device needs a manual restart.

*Credits: N/A
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-10-27 CVE Reserved
  • 2023-01-19 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-11 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
Webex Room Phone Firmware
Search vendor "Cisco" for product "Webex Room Phone Firmware"
<= 1.2.0
Search vendor "Cisco" for product "Webex Room Phone Firmware" and version " <= 1.2.0"
-
Affected
in Cisco
Search vendor "Cisco"
Webex Room Phone
Search vendor "Cisco" for product "Webex Room Phone"
--
Safe
Cisco
Search vendor "Cisco"
Webex Share Firmware
Search vendor "Cisco" for product "Webex Share Firmware"
<= 1.2.0
Search vendor "Cisco" for product "Webex Share Firmware" and version " <= 1.2.0"
-
Affected
in Cisco
Search vendor "Cisco"
Webex Share
Search vendor "Cisco" for product "Webex Share"
--
Safe
Cisco
Search vendor "Cisco"
Sip Ip Phone Software
Search vendor "Cisco" for product "Sip Ip Phone Software"
<= 1.2.0
Search vendor "Cisco" for product "Sip Ip Phone Software" and version " <= 1.2.0"
-
Affected