TI-2021-14192 Aliases CVE-2021-35394 GHSA-9q9f-f28q-83xj

Realtek Jungle SDK version v2.x up to v3.4.14B provides a diagnostic tool called 'MP…

CRITICAL 100Exploited in the wildCWE-78Published 2021-08-16 · Updated 2025-10-21

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Active In CISA KEV since 2021-12-10CISA due date 2021-12-24

EPSS 0.99877 99th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Active
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:realtek:rtl819x_jungle_software_development_kit::::::::	2.0 – 3.4.14b	Vulnerable	Realtek

cpe:2.3:a:realtek:rtl819x_jungle_software_development_kit:*:*:*:*:*:*:*:* Versions 2.0 – 3.4.14b Vulnerable ·Realtek

Remediation

No fixed version listed by the sources yet.

Timeline

2021-12-10 Added to CISA KEV
2026-10-02 Threatist record created from CVE-2021-35394
2026-10-03 Alias added: GHSA-9q9f-f28q-83xj

References

Exploit 1

https://www.iot-inspector.com/blog/advisory-multiple-issues-realtek-sdk-iot-supply-chain

Patch 2

TI-2021-14193 Realtek Jungle SDK version v2.x up to v3.4.14B provides an HTTP web server exposing a… KEVCVSS 3.1CRITICAL 9.8
TI-2021-14191 Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server… CVSS 3.1CRITICAL 9.8
TI-2023-25815 Cross-site request forgery in LevelOne WBR-6013 CVSS 3.1HIGH 8.8
TI-2021-14190 Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server… CVSS 3.1HIGH 7.5
TI-2024-14461 Heap-based buffer overflow in LevelOne WBR-6013 CVSS 3.1HIGH 7.2
TI-2023-27569 OS command injection in LevelOne WBR-6013 CVSS 3.1HIGH 7.2

See all 22 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences