How severe is CVE-2022-20755?

CVE-2022-20755 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2022-20755 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-20755?

CVE-2022-20755 affects Cisco Telepresence Video Communication Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-20755?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-20755 published?

CVE-2022-20755 was published on 2022-04-06 and last updated on 2026-06-17.

CVE-2022-20755

CVE-2022-20755 is a critical-severity vulnerability in Cisco Telepresence Video Communication Server with a CVSS 3.x base score of 9.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-23.

Key facts

Severity: Critical (CVSS 3.x base score 9.0)
CVSS v2: 9.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-23
Affected product: Cisco Telepresence Video Communication Server
Published: 2022-04-06
Last modified: 2026-06-17

Description

Multiple vulnerabilities in the API and web-based management interfaces of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read/write privileges to the application to write files or execute arbitrary code on the underlying operating system of an affected device as the root user. For more information about these vulnerabilities, see the Details section of this advisory.

Frequently asked questions

What is CVE-2022-20755?: Multiple vulnerabilities in the API and web-based management interfaces of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read/write privileges to the application to write files or execute arbitrary code on the underlying operating system of an affected device as the root user. For more information about these vulnerabilities, see the Details section of this advisory.
How severe is CVE-2022-20755?: CVE-2022-20755 has a CVSS 3.x base score of 9.0, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2022-20755 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-20755?: CVE-2022-20755 affects Cisco Telepresence Video Communication Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-20755?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-20755 published?: CVE-2022-20755 was published on 2022-04-06 and last updated on 2026-06-17.

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-filewrite-87Q5YRk

Affected products (1)

cpe:2.3:a:cisco:telepresence_video_communication_server:*:*:*:*:expressway:*:*:*

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