9.6

CVE-2023-20105: cisco cisco telepresence video communication server (vcs) expressway Improper Input Validation

CVSS: 9.6v3.1CriticalModified
Published 28-06-2023Last modified 02-08-2024
Open JSON

Vulnerability summary

CVE-2023-20105 is a critical (CVSS 9.6) Improper Input Validation vulnerability in cisco cisco telepresence video communication server (vcs) expressway. EPSS estimates a 0.91% chance of exploitation in the next 30 days, higher than 59.4% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.6/10
010
Critical · v3.1 (CVE.org)
EPSS score
0.91%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 28-06-2023
    PublishedVulnerability first disclosed.
  2. 02-08-2024
    Last modifiedVulnerability information updated.

Description

A vulnerability in the change password functionality of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with Read-only credentials to elevate privileges to Administrator on an affected system. This vulnerability is due to incorrect handling of password change requests. An attacker could exploit this vulnerability by authenticating to the application as a Read-only user and sending a crafted request to the web-based management interface. A successful exploit could allow the attacker to alter the passwords of any user on the system, including an administrative user, and then impersonate that user. Note: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.91%

Chance of exploitation in the next 30 days

Percentile

59%

Versus all other CVEs

30-day change

0.00 pp

From 0.91% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.91%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Cisco2 products
  • cisco telepresence video communication server (vcs) expresswayX8.5.1 | X8.5.3 | X8.5 | X8.6.1 | X8.6 | X8.1.1 | X8.1.2 | X8.1 | X8.2.1 | X8.2.2 | X8.2 | X8.7.1 | X8.7.2 | X8.7.3 | X8.7 | X8.8.1 | X8.8.2 | X8.8.3 | X8.8 | X8.9.1 | X8.9.2 | X8.9 | X8.10.0 | X8.10.1 | X8.10.2 | X8.10.3 | X8.10.4 | X12.5.8 | X12.5.9 | X12.5.0 | X12.5.2 | X12.5.7 | X12.5.3 | X12.5.4 | X12.5.5 | X12.5.1 | X12.5.6 | X12.6.0 | X12.6.1 | X12.6.2 | X12.6.3 | X12.6.4 | X12.7.0 | X12.7.1 | X8.11.1 | X8.11.2 | X8.11.4 | X8.11.3 | X8.11.0 | X14.0.1 | X14.0.3 | X14.0.2 | X14.0.4 | X14.0.5 | X14.0.6 | X14.0.7 | X14.0.8 | X14.0.9 | X14.0.10 | X14.0.11 | X14.2.1 | X14.2.0
  • telepresence_video_communication_server≤ x14.0.3

1 vendor · 2 products

References

1 links