CVE-2026-76435
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Information Disclosure in Cisco Expressway Series
Vulnerability report for CVE-2026-76435, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-21
Last updated on: 2026-10-21
Assigner: Cisco Systems, Inc.
Description
Description
A vulnerability in Cisco Expressway Series could allow an unauthenticated, remote attacker to obtain sensitive information from an affected device.
This vulnerability is due to insufficient authorization checks of HTTP requests during Mobile and Remote Access (MRA) provisioning. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to access sensitive information that they would otherwise not have authorization to access.
Note: Cisco Expressway Series refers to Cisco Expressway Core (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.9.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.11.4 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.4 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.8.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.2.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.5.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.6.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.1.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.8 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.10.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.10.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.7 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.10.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.7.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.8 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.7 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.5.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.9 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.10.4 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.7.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.5 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.6.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.6.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.6.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.6.4 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.7.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.7.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.4 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.5 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.6 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.7 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.8 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.2.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.9 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.2.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.2.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.11 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.2.5 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.0.10 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.2.6 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.2.7 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.0.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.4 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.5 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.0.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.0.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.0.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.6 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.2.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.2.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.2.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.2.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X14.3.7 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.2.4. |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.2.4 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.3.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.3.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.3.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.4.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.5.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.5.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X15.5.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.11.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.6 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.11.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.2.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.8.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.11.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.1.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.9 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.5.6 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.7.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X12.6.0 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.11.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.5 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.9.1 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.10.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.8.2 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.5.3 |
| Cisco | Cisco | TelePresence Video Communication Server (VCS) Expressway X8.1 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-497 | The product does not properly prevent sensitive system-level information from being accessed by unauthorized actors who do not have the same level of access to the underlying system as the product does. |
