CVE-2026-8363
Stack-based overflow in WOSDeviceDropFolder.dll on long /resources URL path.
Is CVE-2026-8363 being exploited?
Not confirmed. CVE-2026-8363 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 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2026-8363?
CVE-2026-8363 is rated Critical with a CVSS score of 9.8. 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-2026-8363?
Not known from our data. No patch reference has been recorded for CVE-2026-8363, 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 should I do about CVE-2026-8363?
Patch when released; monitor exposure and restrict /resources access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote code execution via crafted long URL path; attacker can gain control of the host.
Patch when possible
- affected< 17.3.10565.57509
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.