Open Redirect in Cisco Telepresence Video Communication Server (Vcs) Expressway
CVE-2024-20400
A vulnerability in the web-based management interface of Cisco Expressway Series could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. This vulnerability is due to improper input validation of HTTP request parameters. An attacker could exploit this vulnerability by intercepting and modifying an HTTP request from a user. A successful exploit could allow the attacker to redirect the user to a malicious web page. Note: Cisco Expressway Series refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (30.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Cisco Telepresence Video Communication Server (Vcs) Expressway — versions X8.5.1, X8.5.3, X8.5
- Cisco Telepresence Video Communication Server — versions x8.1, x8.1.1, x8.1.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2024-20400?
- CVE-2024-20400 is a medium-severity vulnerability in Cisco Telepresence Video Communication Server (Vcs) Expressway, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.7/10. Published 2024-07-17.
- How severe is CVE-2024-20400?
- Medium severity. CVSS v3 base score is 4.7 out of 10.
- Is CVE-2024-20400 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.