CVE-2026-20302
Cisco RoomOS Stack Overflow Vulnerability
Description
A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with root privileges. This vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges.
INFO
Published Date :
Aug. 19, 2026, 5:18 p.m.
Last Modified :
Aug. 19, 2026, 5:18 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-20302
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update Cisco RoomOS to the latest version.
- Apply vendor-provided patches for the USB driver.
- Restrict physical access to USB ports.
- Disable unnecessary USB services.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-20302.
| URL | Resource |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-20302 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-20302
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-20302 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-20302 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Aug. 19, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Cisco', 'product': 'Cisco RoomOS Software', 'versions': [{'status': 'affected', 'version': 'RoomOS 10.11.2.2'}, {'status': 'affected', 'version': 'RoomOS 10.15.2.2'}, {'status': 'affected', 'version': 'RoomOS 11.5.4.6'}, {'status': 'affected', 'version': 'RoomOS 11.5.2.4'}, {'status': 'affected', 'version': 'RoomOS 10.8.2.5'}, {'status': 'affected', 'version': 'RoomOS 10.11.5.2'}, {'status': 'affected', 'version': 'RoomOS 10.11.3.0'}, {'status': 'affected', 'version': 'RoomOS 10.15.5.3'}, {'status': 'affected', 'version': 'RoomOS 10.19.2.2'}, {'status': 'affected', 'version': 'RoomOS 11.1.3.1'}, {'status': 'affected', 'version': 'RoomOS 10.11.6.0'}, {'status': 'affected', 'version': 'RoomOS 10.19.3.0'}, {'status': 'affected', 'version': 'RoomOS 10.19.4.2'}, {'status': 'affected', 'version': 'RoomOS 10.3.2.4'}, {'status': 'affected', 'version': 'RoomOS 10.3.4.0'}, {'status': 'affected', 'version': 'RoomOS 10.15.3.0'}, {'status': 'affected', 'version': 'RoomOS 11.1.4.1'}, {'status': 'affected', 'version': 'RoomOS 11.14.2.3'}, {'status': 'affected', 'version': 'RoomOS 11.1.2.4'}, {'status': 'affected', 'version': 'RoomOS 10.8.3.1'}, {'status': 'affected', 'version': 'RoomOS 11.14.2.1'}, {'status': 'affected', 'version': 'RoomOS 10.3.3.0'}, {'status': 'affected', 'version': 'RoomOS 10.8.4.0'}, {'status': 'affected', 'version': 'RoomOS 10.15.4.1'}, {'status': 'affected', 'version': 'RoomOS 10.19.5.6'}, {'status': 'affected', 'version': 'RoomOS 10.11.4.1'}, {'status': 'affected', 'version': 'RoomOS 11.9.3.1'}, {'status': 'affected', 'version': 'RoomOS 11.5.3.3'}, {'status': 'affected', 'version': 'RoomOS 10.3.2.0'}, {'status': 'affected', 'version': 'RoomOS 11.9.2.4'}, {'status': 'affected', 'version': 'RoomOS 11.14.3.0'}, {'status': 'affected', 'version': 'RoomOS 11.17.2.2'}, {'status': 'affected', 'version': 'RoomOS 11.14.4.0'}, {'status': 'affected', 'version': 'RoomOS 10.19 StepUpg'}, {'status': 'affected', 'version': 'RoomOS 11.17.3.0'}, {'status': 'affected', 'version': 'RoomOS 11.20.2.3'}, {'status': 'affected', 'version': 'RoomOS 11.14.5.0'}, {'status': 'affected', 'version': 'RoomOS 11.17.4.0'}, {'status': 'affected', 'version': 'RoomOS 11.20.3.0'}, {'status': 'affected', 'version': 'RoomOS 11.23.1.6'}, {'status': 'affected', 'version': 'RoomOS 11.23.1.8'}, {'status': 'affected', 'version': 'RoomOS 11.24.1.5'}, {'status': 'affected', 'version': 'RoomOS 11.24.2.4'}, {'status': 'affected', 'version': 'RoomOS 11.24.3.0'}, {'status': 'affected', 'version': 'RoomOS 11.24.4.1'}, {'status': 'affected', 'version': 'RoomOS 11.27.2.0'}, {'status': 'affected', 'version': 'RoomOS 11.28.1.3'}, {'status': 'affected', 'version': 'RoomOS 11.27.3.0'}, {'status': 'affected', 'version': 'RoomOS 11.31.1.5'}, {'status': 'affected', 'version': 'RoomOS 11.27.4.0'}, {'status': 'affected', 'version': 'RoomOS 11.32.2.1'}, {'status': 'affected', 'version': 'RoomOS 11.33.1.7'}, {'status': 'affected', 'version': 'RoomOS 26.0.1.2'}, {'status': 'affected', 'version': 'RoomOS 11.34.1.2'}, {'status': 'affected', 'version': 'RoomOS 11.32.3.0'}, {'status': 'affected', 'version': 'RoomOS 11.27.5.0'}, {'status': 'affected', 'version': 'RoomOS 11.32.4.0'}, {'status': 'affected', 'version': 'RoomOS 26.1.1.5'}, {'status': 'affected', 'version': 'RoomOS 11.35.1.2'}, {'status': 'affected', 'version': 'RoomOS 26.2.2.2'}, {'status': 'affected', 'version': 'RoomOS 11.32.5.1'}, {'status': 'affected', 'version': 'RoomOS 26.4.1.6'}, {'status': 'affected', 'version': 'RoomOS 26.4.1.4'}, {'status': 'affected', 'version': 'RoomOS 26.3.1.3'}, {'status': 'affected', 'version': 'RoomOS 11.36.1.1'}, {'status': 'affected', 'version': 'RoomOS 11.37.1.0'}, {'status': 'affected', 'version': 'RoomOS 26.5.2.0'}, {'status': 'affected', 'version': 'RoomOS 26.5.2.2'}, {'status': 'affected', 'version': 'RoomOS 26.6.1.4'}, {'status': 'affected', 'version': 'RoomOS 11.38.1.1'}, {'status': 'affected', 'version': 'RoomOS 11.32.6.0'}, {'status': 'affected', 'version': 'RoomOS 11.39.1.1'}], 'defaultStatus': 'unknown'}] Added Description A vulnerability in the USB driver of Cisco RoomOS could allow an unauthenticated, local attacker with physical access to the USB port on an affected device to execute arbitrary code with root privileges. This vulnerability is due to insufficient boundary checks for specific data that is provided through the USB driver. An attacker could exploit this vulnerability by connecting a malicious USB device to an affected device. A successful exploit could allow the attacker to cause a buffer overflow condition on the affected system and execute arbitrary code with root privileges. Added CVSS V3.1 AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-120 Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-roomos-bof-vTMANZgu