VulnerabilityAnalyzed
CVE-2026-108463
Improper resolution of path equivalence in Windows SmartScreen allows an unauthorized attacker to bypass a security feature over a network.
HIGH 8.8EPSS 1.00%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.00%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Improper resolution of path equivalence in Windows SmartScreen allows an unauthorized attacker to bypass a security feature over a network.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.00% probability · 62th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-41
- Affected
- microsoft/windows 11 24h2 · microsoft/windows 11 25h2 · microsoft/windows 11 26h1 · microsoft/windows 11 26h2
- Source
- secure@microsoft.com
EPSS moved from 0.9% on 14 October 2026 to 1.0% on 26 October 2026.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108463Patch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.