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CVE-2022-20783

25
FAUCET Score

CVE-2022-20783 is a denial-of-service vulnerability in Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software, stemming from insufficient input validation in packet processing. An unauthenticated, remote attacker can exploit this by sending crafted H.323 traffic, causing the affected device to reboot normally or into maintenance mode. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity and high impact on availability, requiring no user interaction. While there is no known active exploitation, public exploit code, or Metasploit/Nuclei modules, the vulnerability has garnered some community discussion and media coverage, with the NSA reportedly involved in its discovery.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.15.10.8CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:*
>= 10.0.0.0, < 10.11.2.2CPE matchmatch criteria
cpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:*
< 2022CPE matchmatch criteria
cpe:2.3:o:cisco:roomos:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.37%
Probability of exploitation in next 30 days
EPSS Percentile
69.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0137 is in the 50th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-ce-roomos-dos-c65x2Qf2
Vendor Advisory