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.

CVSS v4.0

8.7 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS

0.46% chance of exploitation in the next 30 days, 38th percentile

Published

2025-11-14

Updated

2026-04-07

Proof-of-concept exploits (4)

• https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5601.php
• https://www.exploit-db.com/exploits/48951
• https://packetstorm.news/files/id/159602
• https://cxsecurity.com/issue/WLB-2020100122

References

• CVE Record
• NVD entry

Related

• CVE-2021-44649
• CVE-2021-44653
• CVE-2021-44648
• CVE-2021-44655
• CVE-2021-4464
• CVE-2021-44657