Privilege Escalation Vulnerability in Comodo Dragon Browser
CVE-2016-20090

8.5HIGH

Key Information:

Vendor

Comodo

Status
Dragon Browser
Vendor
CVE Published:
19 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20090?

The Comodo Dragon Browser versions up to 52.15.25.663 are susceptible to a privilege escalation issue stemming from the DragonUpdater service. This vulnerability is caused by an unquoted service path running with SYSTEM privileges, allowing local attackers to place malicious executables within the service path. As a result, upon restarting the service or rebooting the system, arbitrary code may be executed with elevated privileges, posing significant security risks.

Affected Version(s)

Dragon Browser 0 <= 52.15.25.663

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-2016-20090 - Proof of Concept

References

https://www.exploit-db.com/exploits/40471
exploit
https://www.comodo.com
product
http://yildirimyunus.com
product

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Yunus YILDIRIM (@Th3GundY)
.