High severity · published Jun 19, 2026
CVE-2016-20090
Comodo Dragon Browser 52.15.25.663 Privilege Escalation via Unquoted Service Path
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Comodo Dragon Browser versions up to 52.15.25.663 contain a privilege escalation vulnerability in the DragonUpdater service due to an unquoted service path running with SYSTEM privileges. A local attacker can insert a malicious executable in the service path and execute arbitrary code with elevated privileges upon service restart or system reboot.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DB
Dragon Browser · Comodo
through 52.15.25.663 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-20090
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-20090
yildirimyunus.com
http://yildirimyunus.com
www.comodo.com
https://www.comodo.com
www.comodo.com
https://www.comodo.com/home/browsers-toolbars/browser.php
www.exploit-db.com
https://www.exploit-db.com/exploits/40471
www.vulncheck.com
https://www.vulncheck.com/advisories/comodo-dragon-browser-privilege-escalation-via-unquoted-service-path