CVE-2021-35394KEV · OVERDUE

Realtek Jungle SDK Remote Code Execution Vulnerability

Critical · published August 16, 2021

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 9.8. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

1765
days past CISA
deadline
CVSS v3.1
9.8
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 A remote unauthenticated attacker can execute commands on devices running Realtek Jungle SDK versions up to 3.4.14B, like finding the master switch in a dark room! 🔥 Think of it like a restaurant giving someone the secret ingredient list without checking their identity. If they know what to look for, they can change the recipe at will—potentially serving up a dangerous dish to unsuspecting diners! An attacker could gain complete control over affected devices, leading to unauthorized access, data breaches, or even turning the device into a launchpad for further attacks. It's an open invitation to wreak havoc, with potentially devastating consequences for your network!

Put simply

Think of it like a restaurant giving someone the secret ingredient list without checking their identity. If they know what to look for, they can change the recipe at will—potentially serving up a dangerous dish to unsuspecting diners! Multiple memory corruption vulnerabilities along with an arbitrary command injection flaw in the 'MP Daemon' binary of Realtek Jungle SDK allow remote attackers to execute arbitrary commands on vulnerable devices without authentication.

What to do

An attacker could gain complete control over affected devices, leading to unauthorized access, data breaches, or even turning the device into a launchpad for further attacks. It's an open invitation to wreak havoc, with potentially devastating consequences for your network! To secure your systems, immediately patch to version 3.4.15 or later. Additionally, disable the 'MP Daemon' if it's not needed and review access controls for any exposed services. Don't wait! You've got this! With these steps, you can protect your devices and maintain hero status in the cybersecurity realm! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99877 · 100.0th percentile
Published
2021-08-16T11:07Z
KEV added
2021-12-10 · due 2021-12-24
EPSS history
Timeline
  • 10 DEC 00:00Z
    Added to CISA KEV — remediate by Dec 24
    kev
  • 16 AUG 11:07Z
    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
    cvelistv5