CVE-2022-20783

highpriority · track · 30EPSS 0.014 · 73 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.43% (73rd) EPSS

CVSS 7.8 · high

Is it mine?

9 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedCisco RoomOS Softwarecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
FixedCisco TelePresence Endpoint Software (TC/CE)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · psirt@cisco.com USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · Cisco PSIRT US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-1287USCWE-1287USCWE-20US

affected products (9)

Products and version ranges known to be affected.

Cisco Cisco RoomOS Softwareall versionscisco_csafUS
Cisco Cisco TelePresence Endpoint Software (TC/CE)all versionscisco_csafUS
Cisco Cisco RoomOS Software≤ n/aenisa_euvdEU
Cisco Systems Inc. RoomOS≤ 01.01.2022fstec_bduRU
Cisco Systems Inc. TelePresence Collaboration Endpoint (CE)≤ 9.15.10.8fstec_bduRU
Cisco Systems Inc. TelePresence Collaboration Endpoint (CE)≤ 10.11.2.2fstec_bduRU
cisco roomos< 2022nvdUScpe:2.3:o:cisco:roomos:*:*:*:*:*:*:*:*
cisco telepresence collaboration endpoint< 9.15.10.8nvdUScpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:*
cisco telepresence collaboration endpoint10.0.0.0 → 10.11.2.2nvdUScpe:2.3:a:cisco:telepresence_collaboration_endpoint:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-ce-roomos-dos-c65x2Qf2Cisco TelePresence Collaboration Endpoint and RoomOS Software H.323 Denial of Service Vulnerability2022-04-20csaf · cisco_csafUS
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

published 2022-04-21modified 2026-06-17

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+25171 more

references (5)

External citations — patches, advisories, analysis.

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