Stack-based Buffer Overflow in Realtek eCos RSDK and MSDK Products
CVE-2022-27255

9.8CRITICAL

Key Information:

Vendor

Realtek

Status
Ecos Rsdk Firmware
Vendor
CVE Published:
1 August 2022

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 25%

What is CVE-2022-27255?

A vulnerability in Realtek's eCos RSDK and MSDK allows remote attackers to exploit a stack-based buffer overflow through crafted SIP packets containing malicious SDP data. This weakness could enable unauthorized code execution without requiring authentication, posing significant security risks for affected systems.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

cve-2022-27255
Created by infobyte

CVE-2022-27255-checker
Created by stryker-project

References

https://www.realtek.com/images/safe-report/Realtek_APRout...
x_refsource_MISC
https://forum.defcon.org/node/241835
x_refsource_MISC

EPSS Score

25% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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