Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability

Advisory ID:
First Published:
2023 May 3 16:00 GMT
Version 1.0:
No workarounds available
Cisco Bug IDs:
CVSS Score:
Base 9.8
Base 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X


  • A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device.This vulnerability is due to a missing authentication process within the firmware upgrade function. An attacker could exploit this vulnerability by upgrading an affected device to a crafted version of firmware. A successful exploit could allow the attacker to execute arbitrary code on the affected device with full privileges.Cisco has not released firmware updates to address this vulnerability. There are no workarounds that address this vulnerability.This advisory is available at the following link:

Affected Products

  • Vulnerable ProductsThis vulnerability affects all firmware releases for Cisco SPA112 2-Port Phone Adapters.Products Confirmed Not VulnerableOnly products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.


  • There are no workarounds that address this vulnerability.

Fixed Software

  • Cisco has not released and will not release firmware updates to address the vulnerability that is described in this advisory. Cisco SPA112 2-Port Phone Adapters have entered the end-of-life process. Customers are advised to refer to the end-of-life notice for the product:End-of-Sale and End-of-Life Announcement for the Cisco SPA112 2-Port Phone Adapter and SPA122 ATA with RouterCustomers are encouraged to migrate to a Cisco ATA 190 Series Analog Telephone Adapter.When considering a device migration, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.In all cases, customers should ensure that the new device will be sufficient for their network needs and that current hardware and software configurations will continue to be supported properly by the new product. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

  • The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.


  • Cisco would like to thank CataLpa of Dbappsecurity Co., Ltd. Hatlab, for reporting this vulnerability.


Revision History

  • VersionDescriptionSectionStatusDate1.0Initial public release.-Final2023-MAY-03

Source :