synced 9 MIN AGO
01 Record

CVE-2023-20209

A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read-write

MediumPUBLISHEDCNA: cisco
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
View raw JSON

02 Description

A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read-write

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
39.51% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 98.6% of scored records. A rank, not a probability.
NVD base score
7.2 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-08-16 20:59Z3 YR AGO
Last updated
2025-12-16 18:23Z10 MO AGO
Reserved
2022-10-27
Assigning CNA
cisco
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-94Improper Control of Generation of Code ('Code Injection')Base
  • CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
Data version
5.2
Document digest
e1dcf9e29eca94494b0360ee89ba5678157b4c1104a9a4a454cdd23b7f4c745d

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco 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, X14.2.2, X14.2.5, X14.2.6, X14.2.0, X14.2.7, X14.3.0—

06 References