- 7.5HighCVSS base score
- 0.47%Exploitation in 30 daysEPSS · top 59% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco RoomOS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20153 are related to improper input validation that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.
Timeline
ID reserved
By cisco
- 9 months later
· 9 months later
Published
- 30 days later
· 30 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| ciscoCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Undergoing Analysis | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected RoomOS 10.11.2.2
- affected RoomOS 10.15.2.2
- affected RoomOS 11.5.4.6
- affected RoomOS 11.5.2.4
- affected RoomOS 10.8.2.5
- affected RoomOS 10.11.5.2
- affected RoomOS 10.11.3.0
- affected RoomOS 10.15.5.3
- affected RoomOS 10.19.2.2
- affected RoomOS 11.1.3.1
- affected RoomOS 10.11.6.0
- affected RoomOS 10.19.3.0
- affected RoomOS 10.19.4.2
- affected RoomOS 10.3.2.4
- affected RoomOS 10.3.4.0
- affected RoomOS 10.15.3.0
- affected RoomOS 11.1.4.1
- affected RoomOS 11.14.2.3
- affected RoomOS 11.1.2.4
- affected RoomOS 10.8.3.1
- affected RoomOS 11.14.2.1
- affected RoomOS 10.3.3.0
- affected RoomOS 10.8.4.0
- affected RoomOS 10.15.4.1
- affected RoomOS 10.19.5.6
- affected RoomOS 10.11.4.1
- affected RoomOS 11.9.3.1
- affected RoomOS 11.5.3.3
- affected RoomOS 10.3.2.0
- affected RoomOS 11.9.2.4
- affected RoomOS 11.14.3.0
- affected RoomOS 11.17.2.2
- affected RoomOS 11.14.4.0
- affected RoomOS 10.19 StepUpg
- affected RoomOS 11.17.3.0
- affected RoomOS 11.20.2.3
- affected RoomOS 11.14.5.0
- affected RoomOS 11.17.4.0
- affected RoomOS 11.20.3.0
- affected RoomOS 11.23.1.6
- and 28 more
What to do
Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
References
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-44719 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-20153)Record last updated .