High 8.7Published Nov 14, 2025

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

Updated under an hour ago (Oct 26, 2026, 10:30 PM ET)

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It affects ReQuest Serious Play LLC ReQuest Serious Play Pro and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for ReQuest Serious Play LLC ReQuest Serious Play Pro

Exploited in the last 30 days

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: 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-400
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Apr 7, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ReQuest Serious Play LLC ReQuest Serious Play Pro request_serious_play:pro (from the name)	7.0.3.4968	CNA record
ReQuest Serious Play LLC ReQuest Serious Play request_serious_play:request_serious_play (from the name)	7.0.2.4954; 6.5.2.4954; 6.4.2.4681; 6.3.2.4203; 2.0.1.823	CNA record

References

References

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5601.php	technical-description, exploit
https://www.exploit-db.com/exploits/48951	exploit
https://packetstorm.news/files/id/159602	exploit
https://cxsecurity.com/issue/WLB-2020100122	exploit
https://exchange.xforce.ibmcloud.com/vulnerabilities/190031	vdb-entry
http://www.request.com/	product
https://www.vulncheck.com/advisories/request-serious-play-f3-media-server-remote-dos	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.