TI-2021-14191 Aliases CVE-2021-35393 GHSA-m5f8-mpp8-9vp4

Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server…

HIGH 78CWE-787Published 2021-08-16 · Updated 2024-08-04

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 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

Realtek Jungle SDK version v2.x up to v3.4.14B provides a 'WiFi Simple Config' server that implements both UPnP and SSDP protocols. The binary is usually named wscd or mini_upnpd and is the successor to miniigd. The server is vulnerable to a stack buffer overflow vulnerability that is present due to unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header. Successful exploitation of this vulnerability allows remote unauthenticated attackers to gain arbitrary code execution on the affected device.

Why it matters now

EPSS 0.66387 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

Not available: CISA has not published SSVC decision points for this record.

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

2026-10-02 Threatist record created from CVE-2021-35393
2026-10-03 Alias added: GHSA-m5f8-mpp8-9vp4

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-2021-14192 Realtek Jungle SDK version v2.x up to v3.4.14B provides a diagnostic tool called 'MP… KEVCVSS 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