SB2025101625 - Remote denial of service in Envoy
Published: October 16, 2025
Security Bulletin ID
SB2025101625
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2025-62409)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference when handling large requests and responses. A remote attacker can send specially crafted HTTP requests to the server and trigger TCP connection pool to crash.
Remediation
Install update from vendor's website.