CVE-2021-35394 · Severity: critical · CVSS 9.8 · Exploited in the wild · Published 2021-12-10
The Realtek Jungle SDK contains multiple memory corruption vulnerabilities and an arbitrary command injection vulnerability in the 'MP Daemon' diagnostic tool (UDPServer binary). Remote unauthenticated attackers can exploit these flaws to achieve remote code execution.
Yes. CVE-2021-35394 is known to be exploited in the wild, first recorded on 10 December 2021. Treat it as urgent.
How severe is CVE-2021-35394?
Critical severity, with a CVSS score of 9.8, published 10 December 2021.
Which products and versions are affected?
Realtek Jungle SDK v2.x through v3.4.14B; Realtek RTL819x Jungle Software Development Kit v2.x through v3.4.14B.
Is there a fix for CVE-2021-35394?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2021-35394 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2021-35394?
Check whether you run Realtek Jungle Software Development Kit (SDK). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Realtek Jungle SDK v2.x through v3.4.14B
Realtek RTL819x Jungle Software Development Kit v2.x through v3.4.14B
Timeline
2021-08-26: disclosed: Initial NVD analysis date
2021-12-10: kev added: Added to CISA Known Exploited Vulnerabilities Catalog