Realtek Jungle SDK Remote Code Execution Vulnerability

Added to KEV
2021-12-10
Federal due date
2021-12-24
Vendor
Realtek
Product
Jungle Software Development Kit (SDK)
EPSS
99.9th percentile (score 0.942, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Unknown
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2021-35394

CISA short description

RealTek Jungle SDK contains multiple memory corruption vulnerabilities which can allow an attacker to perform remote code execution.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.