CVE-2022-20783

Cisco TelePresence Collaboration Endpoint and RoomOS Software H.323 Denial of Service Vulnerability

HIGH
7.5
CVSS Score
Published: April 21, 2022 at 06:50 PM UTC
Updated: June 17, 2026 at 04:25 AM UTC
2 products affected across 1 vendorRoomosTelepresence Collaboration Endpoint

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A vulnerability in the packet processing functionality of Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending crafted H.323 traffic to an affected device. A successful exploit could allow the attacker to cause the affected device to either reboot normally or reboot into maintenance mode, which could result in a DoS condition on the device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2022
Affected range stops below 2022, so it looks safe — our inference, not a vendor statement
v < 9.15.10.810.0.0.0 ≤ v < 10.11.2.2
Affected range stops below 10.11.2.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.15.10.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-1287CWE-20

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