Security October 2026 CVE-2026-96187
AssessmentAccess of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.
Severity Important
CVSS base score 7.4
Impact Information Disclosure
Exploitation detected No known exploitation (MSRC assessment)
Exploitability Not assessed
Publicly disclosed No (MSRC assessment)
EPSS · 30-day forecast 0.5% FIRST forecast dated 10 Nov 2026, for the following 30 days · FIRST percentile 43.4% · about EPSS
Customer action Required: follow the MSRC remediation guidance
More details
CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C
Public detection template No Nuclei template is listed in the current collected catalog
Component Microsoft Edge (Chromium-based)
Weakness CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
Issued by Microsoft
Last revised 26 Oct 2026 CVSS 3.1 base metrics Red raises the risk · green lowers it
Attack vector NetworkAV:N
Attack complexity LowAC:L
Privileges required NonePR:N
User interaction RequiredUI:R
Scope ChangedS:C
Confidentiality HighC:H
Integrity NoneI:N
Availability NoneA:N
Updates that fix it0 KBs No KB listed No KB update is listed in the collected MSRC record. Check the MSRC advisory for product releases and other remedies.
Source. This summary comes from MSRC's public CVRF document for October 2026. If the MSRC page is blocked in your browser, the NVD and CVE.org records carry the same identifier. None of this says whether your devices are affected.
What changed
Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
6 Nov 2026 · 17:32:22 UTC Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
6 Nov 2026 · 16:31:02 UTC Detection template: Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed
2 Nov 2026 · 17:30:39 UTC Detection template: No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained
2 Nov 2026 · 16:27:39 UTC Detection template: No Nuclei template listed · Customer action: Required: apply the update → Required: follow the MSRC remediation guidance · Public disclosure: No → No (MSRC assessment) · Exploitation detected: Not reported by MSRC → No known exploitation (MSRC assessment)
29 Oct 2026 Page history
Changes are dated when recorded; day views use the last saved version from that UTC day, and citations stay fixed.
Cite this version Field-level log (33)
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10 Nov 2026 · 18:32:11 UTC
EPSS 0.5%; scored 9 Nov 2026 → 0.5%; scored 10 Nov 2026 9 Nov 2026 · 22:24:37 UTC
EPSS 0.5%; scored 8 Nov 2026 → 0.5%; scored 9 Nov 2026 8 Nov 2026 · 15:16:05 UTC
EPSS 0.5%; scored 7 Nov 2026 → 0.5%; scored 8 Nov 2026 7 Nov 2026 · 16:12:44 UTC
EPSS 0.5%; scored 6 Nov 2026 → 0.5%; scored 7 Nov 2026 6 Nov 2026 · 19:15:37 UTC
EPSS 0.5%; scored 5 Nov 2026 → 0.5%; scored 6 Nov 2026 6 Nov 2026 · 17:32:22 UTC
Public detection template Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed 6 Nov 2026 · 17:32:22 UTC
Source coverage: public-exploit-code Incomplete → Current 6 Nov 2026 · 17:32:22 UTC
Source coverage: first-epss Incomplete → Current 6 Nov 2026 · 17:32:22 UTC
Source coverage: msrc-cvrf Incomplete → Current 6 Nov 2026 · 16:31:02 UTC
Public detection template No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained 6 Nov 2026 · 16:31:02 UTC
Source coverage: public-exploit-code Current → Incomplete 6 Nov 2026 · 16:31:02 UTC
Source coverage: first-epss Current → Incomplete 6 Nov 2026 · 16:31:02 UTC
Source coverage: msrc-cvrf Current → Incomplete 5 Nov 2026 · 23:42:03 UTC
EPSS 0.5%; scored 4 Nov 2026 → 0.5%; scored 5 Nov 2026 5 Nov 2026 · 02:36:20 UTC
EPSS 0.5%; scored 3 Nov 2026 → 0.5%; scored 4 Nov 2026 4 Nov 2026 · 03:04:37 UTC
EPSS 0.5%; scored 2 Nov 2026 → 0.5%; scored 3 Nov 2026 3 Nov 2026 · 01:53:36 UTC
EPSS 0.5%; scored 1 Nov 2026 → 0.5%; scored 2 Nov 2026 2 Nov 2026 · 17:30:39 UTC
Public detection template Unknown: detection-template evidence is incomplete or retained → No Nuclei template listed 2 Nov 2026 · 17:30:39 UTC
Source coverage: public-exploit-code Incomplete → Current 2 Nov 2026 · 17:30:39 UTC
Source coverage: first-epss Incomplete → Current 2 Nov 2026 · 17:30:39 UTC
Source coverage: msrc-cvrf Incomplete → Current 2 Nov 2026 · 16:27:39 UTC
Public detection template No Nuclei template listed → Unknown: detection-template evidence is incomplete or retained 2 Nov 2026 · 16:27:39 UTC
Source coverage: public-exploit-code Current → Incomplete 2 Nov 2026 · 16:27:39 UTC
Source coverage: first-epss Current → Incomplete 2 Nov 2026 · 16:27:39 UTC
Source coverage: msrc-cvrf Current → Incomplete 2 Nov 2026 · 00:36:51 UTC
EPSS 0.5%; scored 31 Oct 2026 → 0.5%; scored 1 Nov 2026 31 Oct 2026 · 18:22:15 UTC
EPSS 0.5%; scored 30 Oct 2026 → 0.5%; scored 31 Oct 2026 30 Oct 2026 · 18:02:45 UTC
EPSS No EPSS score collected → 0.5%; scored 30 Oct 2026 29 Oct 2026 · 20:19:26 UTC
Public detection template No Nuclei template listed 29 Oct 2026 · 20:19:26 UTC
EPSS Not scored → No EPSS score collected 29 Oct 2026 · 20:19:26 UTC
Customer action Required: apply the update → Required: follow the MSRC remediation guidance 29 Oct 2026 · 20:19:26 UTC
Publicly disclosed No → No (MSRC assessment) 29 Oct 2026 · 20:19:26 UTC
Exploitation detected Not reported by MSRC → No known exploitation (MSRC assessment) Explore global source statements, affected packages and advisory history for CVE-2026-96187 . The catalog has a separate collection scope from Microsoft release records.