6.1

CVE-2026-20302: cisco cisco roomos software Classic Buffer Overflow

CVSS: 6.1v3.1MediumAwaiting analysis
Published 19-08-2026Last modified 20-08-2026
Open JSON

Vulnerability summary

CVE-2026-20302 is a medium (CVSS 6.1) Classic Buffer Overflow vulnerability in cisco cisco roomos software. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.5% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 19-08-2026
    PublishedVulnerability first disclosed.
  2. 20-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

0.00 pp

From 0.18% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.18%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco1 product
  • cisco roomos softwareRoomOS 10.11.2.2 | RoomOS 10.15.2.2 | RoomOS 11.5.4.6 | RoomOS 11.5.2.4 | RoomOS 10.8.2.5 | RoomOS 10.11.5.2 | RoomOS 10.11.3.0 | RoomOS 10.15.5.3 | RoomOS 10.19.2.2 | RoomOS 11.1.3.1 | RoomOS 10.11.6.0 | RoomOS 10.19.3.0 | RoomOS 10.19.4.2 | RoomOS 10.3.2.4 | RoomOS 10.3.4.0 | RoomOS 10.15.3.0 | RoomOS 11.1.4.1 | RoomOS 11.14.2.3 | RoomOS 11.1.2.4 | RoomOS 10.8.3.1 | RoomOS 11.14.2.1 | RoomOS 10.3.3.0 | RoomOS 10.8.4.0 | RoomOS 10.15.4.1 | RoomOS 10.19.5.6 | RoomOS 10.11.4.1 | RoomOS 11.9.3.1 | RoomOS 11.5.3.3 | RoomOS 10.3.2.0 | RoomOS 11.9.2.4 | RoomOS 11.14.3.0 | RoomOS 11.17.2.2 | RoomOS 11.14.4.0 | RoomOS 10.19 StepUpg | RoomOS 11.17.3.0 | RoomOS 11.20.2.3 | RoomOS 11.14.5.0 | RoomOS 11.17.4.0 | RoomOS 11.20.3.0 | RoomOS 11.23.1.6 | RoomOS 11.23.1.8 | RoomOS 11.24.1.5 | RoomOS 11.24.2.4 | RoomOS 11.24.3.0 | RoomOS 11.24.4.1 | RoomOS 11.27.2.0 | RoomOS 11.28.1.3 | RoomOS 11.27.3.0 | RoomOS 11.31.1.5 | RoomOS 11.27.4.0 | RoomOS 11.32.2.1 | RoomOS 11.33.1.7 | RoomOS 26.0.1.2 | RoomOS 11.34.1.2 | RoomOS 11.32.3.0 | RoomOS 11.27.5.0 | RoomOS 11.32.4.0 | RoomOS 26.1.1.5 | RoomOS 11.35.1.2 | RoomOS 26.2.2.2 | RoomOS 11.32.5.1 | RoomOS 26.4.1.6 | RoomOS 26.4.1.4 | RoomOS 26.3.1.3 | RoomOS 11.36.1.1 | RoomOS 11.37.1.0 | RoomOS 26.5.2.0 | RoomOS 26.5.2.2 | RoomOS 26.6.1.4 | RoomOS 11.38.1.1 | RoomOS 11.32.6.0 | RoomOS 11.39.1.1

1 vendor · 1 product

References

1 links