Vulnerability · Published Jun 28, 2023 · Assigned by cisco

CVE-2023-20192Cisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities

Critical 9.6

In plain English

A critical-severity improper input validation in Cisco TelePresence Video Communication Server (VCS) Expressway from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).

Severity (CVSS 3.1)9.6Critical

Exploit odds (30 days)0.7%top 48.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Multiple vulnerabilities in Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated attacker with Administrator-level read-only credentials to elevate their privileges to Administrator with read-write credentials on an affected system. Note: "Cisco Expressway Series" refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products (as reported)

Vendor	Product	Versions
Cisco	Cisco TelePresence Video Communication Server (VCS) Expressway	n/a

Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

References

20230607 Cisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities vendor-advisory