CVE-2022-20853

CVE-2022-20853 is a high-severity vulnerability in Cisco Telepresence Video Communication Server with a CVSS 3.x base score of 7.4. 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-352.

Key facts

• Severity: High (CVSS 3.x base score 7.4)
• EPSS exploit prediction: 1% (45th percentile)
• Actively exploited: Not listed in CISA KEV
• EU (EUVD) id: EUVD-2022-26103
• Weakness: CWE-352
• Affected product: Cisco Telepresence Video Communication Server
• Published: 2024-11-15
• Last modified: 2026-06-17

Description

A vulnerability in the REST API of Cisco Expressway Series and Cisco TelePresence VCS could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected system. An attacker could exploit this vulnerability by persuading a user of the REST API to follow a crafted link. A successful exploit could allow the attacker to cause the affected system to reload. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. 

Frequently asked questions

What is CVE-2022-20853?

A vulnerability in the REST API of Cisco Expressway Series and Cisco TelePresence VCS could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected system. This vulnerability is due to insufficient CSRF protections for the web-based management interface of an affected system. An attacker could exploit this vulnerability by persuading a user of the REST API to follow a crafted link. A successful exploit could allow the attacker to cause the affected system to reload. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. 

How severe is CVE-2022-20853?

CVE-2022-20853 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-20853 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-20853?

CVE-2022-20853 primarily affects Cisco Telepresence Video Communication Server. In total, 59 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-20853?

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

Does CVE-2022-20853 have an EU (EUVD) identifier?

Yes. CVE-2022-20853 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-26103.

When was CVE-2022-20853 published?

CVE-2022-20853 was published on 2024-11-15 and last updated on 2026-06-17.

References

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-bw-thinrcpt-xss-gSj4CecU
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cssm-priv-esc-SEjz69dv
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-expressway-csrf-sqpsSfY6
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-prv-esc-8PdRU8t8

Affected products (59)

• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.1.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.1.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.2.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.2.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.5:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.5.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.5.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.5.3:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.6:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.6.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.7.3:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.8:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.8.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.8.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.8.3:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.9:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.9.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.9.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10.0:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10.3:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.10.4:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.0:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.3:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x8.11.4:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x12.5.0:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x12.5.1:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x12.5.2:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x12.5.3:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x12.5.4:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x12.5.5:*:*:*:expressway:*:*:*
• cpe:2.3:a:cisco:telepresence_video_communication_server:x12.5.6:*:*:*:expressway:*:*:*

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