CVE-2026-76466 (GCVE-0-2026-76466)
Vulnerability from cvelistv5
Published
2026-10-21 16:14
Modified
2026-10-22 23:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-798 - Use of Hard-coded Credentials
Summary
A vulnerability in the database service feature of Cisco Expressway Series could allow an unauthenticated, remote attacker with network access to a Cisco Expressway device to execute arbitrary operating system commands as root.
This vulnerability is due to the use of persistent cookies. Additionally, there is insufficient validation of client certificates when the TLS Verify Mode is set to Enabled for clustering, which means that client certificates are not validated. An attacker with possession of the cookies could exploit this vulnerability by connecting to the database service and invoking specific remote procedure call (RPC) commands. A successful exploit could allow the attacker to execute arbitrary commands as root on the underlying operating system of an affected device.
Note: Cisco Expressway Series refers to Cisco Expressway Core (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco TelePresence Video Communication Server (VCS) Expressway |
Version: X8.11.2 Version: X8.6 Version: X8.11.3 Version: X8.2.2 Version: X8.8.3 Version: X8.11.0 Version: X12.5.2 Version: X8.1.1 Version: X8.9 Version: X12.5.1 Version: X12.5.6 Version: X8.7.3 Version: X12.6.0 Version: X8.11.1 Version: X8.5 Version: X8.9.1 Version: X8.10.2 Version: X8.8.2 Version: X8.5.3 Version: X8.1 Version: X8.9.2 Version: X8.11.4 Version: X12.5.4 Version: X8.8.1 Version: X8.2.1 Version: X8.5.1 Version: X8.6.1 Version: X8.1.2 Version: X8.8 Version: X8.10.0 Version: X12.5.3 Version: X8.10.1 Version: X12.5.7 Version: X8.10.3 Version: X8.7.1 Version: X8.2 Version: X12.5.8 Version: X8.7 Version: X8.5.2 Version: X12.5.9 Version: X12.5.0 Version: X8.10.4 Version: X8.7.2 Version: X12.5.5 Version: X12.6.1 Version: X12.6.2 Version: X12.6.3 Version: X12.6.4 Version: X12.7.0 Version: X12.7.1 Version: X14.0.0 Version: X14.0.1 Version: X14.0.2 Version: X14.0.3 Version: X14.0.4 Version: X14.0.5 Version: X14.0.6 Version: X14.0.7 Version: X14.0.8 Version: X14.2.0 Version: X14.0.9 Version: X14.2.1 Version: X14.2.2 Version: X14.0.11 Version: X14.2.5 Version: X14.0.10 Version: X14.2.6 Version: X14.2.7 Version: X14.3.0 Version: X14.3.1 Version: X14.3.2 Version: X14.3.3 Version: X15.0.0 Version: X14.3.4 Version: X14.3.5 Version: X15.0.1 Version: X15.0.2 Version: X15.0.3 Version: X14.3.6 Version: X15.2.0 Version: X15.2.1 Version: X15.2.2 Version: X15.2.3 Version: X14.3.7 Version: X15.2.4. Version: X15.2.4 Version: X15.3.0 Version: X15.3.1 Version: X15.3.2 Version: X15.4.0 Version: X15.5.0 Version: X15.5.1 Version: X15.5.2 Version: X15.5.3 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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