CVE-2025-13833 Insecure TLS Fingerprint Validation in ForeScout SecureConnector Configuration Enables Remote Code Execution
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2025-13833?
CVE-2025-13833 is a high-severity vulnerability in Forescout Technologies SecureConnector, published on 26 Oct 2026.
Official description
A vulnerability exists in SecureConnector for Windows when the “Additional Appliance Connections” setting is enabled and the agent’s configuration file contains more than three trusted‑server entries. Some entries omit TLS certificate fingerprints, which allows the agent to accept and establish sessions with a malicious server. An attacker who controls the wired or wireless network can redirect traffic to a malicious server. The attacker can then use the agent’s built‑in command/file features to execute arbitrary commands as SYSTEM, granting full administrative control and the ability to disable endpoint protections or exfiltrate data.
Weakness: CWE-295
Which versions are affected by CVE-2025-13833?
How do I fix CVE-2025-13833?
No fix has been published for CVE-2025-13833 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-13833 being exploited?
There is no known exploitation of CVE-2025-13833 in the wild and no public exploit code.
Sources
Also known as GHSA-qjf6-95gx-vqgh.