CVE-2021-4467 — Positive Technologies MaxPatrol 8 & XSpider Remote DoS
Positive Technologies MaxPatrol 8 and XSpider contain a remote denial-of-service vulnerability in the client communication service on TCP port 2002. The service generates a new …
Published: 2025-11-14 · CVSS: 8.7 · CVSS 4.0
Positive Technologies MaxPatrol 8 and XSpider contain a remote denial-of-service vulnerability in the client communication service on TCP port 2002. The service generates a new session identifier for each incoming connection without adequately limiting concurrent requests. An unauthenticated remote attacker can repeatedly issue HTTPS requests to the service, causing excessive allocation of session identifiers. Under load, session identifier collisions may occur, forcing active client sessions to disconnect and resulting in service disruption.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7