ReQuest Serious Play F3 Media Server <= 7.0.3 Remote DoS
CVE-2021-4465

8.7HIGH

Key Information:

Vendor
CVE Published:
14 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-4465?

ReQuest Serious Play F3 Media Server versions 7.0.3.4968 (Pro), 7.0.2.4954, 6.5.2.4954, 6.4.2.4681, 6.3.2.4203, and 2.0.1.823 contain a remote denial-of-service vulnerability. The device can be shut down or rebooted by an unauthenticated attacker through a single crafted HTTP GET request, allowing remote interruption of service availability.

Affected Version(s)

ReQuest Serious Play 7.0.2.4954

ReQuest Serious Play 6.5.2.4954

ReQuest Serious Play 6.4.2.4681

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

References

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Gjoko Krstic of Zero Science Lab
.
CVE-2021-4465 : Remote Denial-of-Service Vulnerability in ReQuest Serious Play F3 Media Server