CVE-2016-20090
Privilege escalation in Comodo Dragon via unquoted DragonUpdater path.
Is CVE-2016-20090 being exploited?
Not confirmed. CVE-2016-20090 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.18% probability of exploitation in the next 30 days.
How severe is CVE-2016-20090?
CVE-2016-20090 is rated High with a CVSS score of 8.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2016-20090?
Not known from our data. No patch reference has been recorded for CVE-2016-20090, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2016-20090 affect?
CVE-2016-20090 affects Comodo Dragon Browser (Windows <= v52.15.25.663), DragonUpdater service (Windows). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2016-20090?
Upgrade to patched Dragon Browser; apply vendor fix; disable DragonUpdater if needed.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local attacker can gain SYSTEM by placing a malicious exe in the unquoted DragonUpdater path and triggering on restart.
Patch when possible
- affected<= 52.15.25.663
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.