CVE-2021-35394

Published: Aug 16, 2021Updated: Nov 7, 2025 Sources: CVE List NVD BDUNVD-CWE-Other

9.8CRITICAL

NVD MITRE

Description

Realtek Jungle SDK version v2.x up to v3.4.14B provides a diagnostic tool called 'MP Daemon' that is usually compiled as 'UDPServer' binary. The binary is affected by multiple memory corruption vulnerabilities and an arbitrary command injection vulnerability that can be exploited by remote unauthenticated attackers.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

NVD-CWE-Other CWE-78

Affected Products

Realtek Semiconductor Corp.

commercial·TWaka realtek, rtl819x jungle software development kit, rtl819x jungle sdk, rtl8195a firmware, rtsper.sys, realtek “luna” sdk, realtek sdk

Realtek SDKEmbedded

Hardware Firmware / network-adapter

Realtek “Luna” SDKEmbedded

Hardware Firmware / network-adapter

rtl819x jungle software development kitEmbedded

Hardware Firmware / network-adapter

and 1 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability

Added to KEV:Dec 10, 2021

Remediation due:Dec 24, 2021

Required action: Apply updates per vendor instructions.

Official Patch Available

Is your org exposed to CVE-2021-35394?Discuss checks for your systems with a specialist. Scope agreed before testing. Check my exposure

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique

Execution

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References

https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2021-35392_35395.pdf

realtek.com

https://nvd.nist.gov/vuln/detail/CVE-2021-35394

nvd.nist.gov

https://www.anti-malware.ru/news/2021-08-16-111332/36688

anti-malware.ru

and 6 more references View all →

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