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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.

PUBLISHED Reserved 2026-06-19 | Published 2026-06-19 | Updated 2026-06-22 | Assigner VulnCheck




HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

Unquoted Search Path or Element

Product status

Any version
affected

Credits

Yunus YILDIRIM (@Th3GundY) finder

References

www.exploit-db.com/exploits/40471 (ExploitDB-40471) exploit

www.comodo.com (Official Product Homepage) product

yildirimyunus.com (Official Product Homepage) product

www.comodo.com/home/browsers-toolbars/browser.php (Product Reference) product

www.vulncheck.com/...ge-escalation-via-unquoted-service-path (VulnCheck Advisory: Comodo Dragon Browser 52.15.25.663 Privilege Escalation via Unquoted Service Path) third-party-advisory

cve.org (CVE-2016-20090)

nvd.nist.gov (CVE-2016-20090)

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