CVE-2025-13833

Insecure TLS Fingerprint Validation in ForeScout SecureConnector Configuration Enables Remote Code Execution

State
Published
Severity
7.7 High
Published
Oct 26, 2026
Updated
Oct 27, 2026
Reserved
Dec 1, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.07.7 HighCVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NForescout

Weaknesses

  • CWE-295 Improper Certificate Validation

Affected Products

ProductVersions
SecureConnectorForescout Technologies
  • before 11.3.20Affected

References

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