ReQuest Serious Play F3 Media Server 7.0.3.4968 HTTP resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in ReQuest Serious Play F3 Media Server 7.0.3.4968 and classified as problematic. Impacted is an unknown function of the component HTTP Handler. Such manipulation leads to resource consumption. This vulnerability is documented as CVE-2021-4465. The attack can be executed remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in ReQuest Serious Play F3 Media Server 7.0.3.4968 and classified as critical. Affected by this issue is an unknown code of the component HTTP Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. CVE summarizes:

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.

The weakness was released by Gjoko Krstic as ZSL-2020-5601. The advisory is available at zeroscience.mk. This vulnerability is handled as CVE-2021-4465 since 11/14/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a public exploit is available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The exploit is available at exploit-db.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (190031), Exploit-DB (48951) and EUVD (EUVD-2021-34720). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.5
VulDB Temp Score: 6.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Exploit-DB: 🔒

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

11/14/2025 CVE reserved
11/15/2025 +1 days Advisory disclosed
11/15/2025 +0 days VulDB entry created
11/16/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: ZSL-2020-5601
Researcher: Gjoko Krstic
Status: Not defined

CVE: CVE-2021-4465 (🔒)
GCVE (CVE): GCVE-0-2021-4465
GCVE (VulDB): GCVE-100-332546
EUVD: 🔒
X-Force: 190031

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/15/2025 07:13
Updated: 11/16/2025 17:03
Changes: 11/15/2025 07:13 (72), 11/16/2025 17:03 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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