VendorMicrosoft Security Update Guide RSS
CVE-2026-88178 Microsoft Office PowerPoint Remote Code Execution VulnerabilityType Vulnerability
Microsoft
Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities
3 sourcesCVE-2026-88178
At a glance
Low
30-day window, from the last update
None observed
Evidence-weighted, not popularity
Why Low
Low rather than Medium: UK relevance is 40 of 100, little UK-specific signal so far.
Briefing
- Do not treat uncorroborated claims as confirmed breaches.
Questions to ask IT
- Do we run Microsoft 365 Apps, Microsoft Office 2021 and Microsoft Office 2024, and which versions?
- If it is not yet patched, what mitigation is in place, and will the fix be done by 3 Dec?
Next steps
- Confirm whether this affects systems or suppliers in your estate
Vulnerability facts
Full CVE detail CVE-2026-88178- 9.8 · CriticalExploitable over the network without any account, and no one has to click or open anything. High impact on confidentiality, integrity and availability.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Not listed
- ~1% estimated chance of attack in 30 days
No technical write-up beyond these facts and the summary below yet.
Next steps
- Review the advisory against your asset inventory and patch cadence
Summary
- Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities " ": "Talos intelligence and world-class threat research team better protects you and your organisation against known and emerging cybersecurity threats."
Read the original reportMicrosoft Security Update Guide RSS(opens in a new tab)
Products and services involved
- Microsoft 365 Apps93% match confidence · CVE-2026-88178
- Microsoft Office 202193% match confidence · CVE-2026-88178
- Microsoft Office 202493% match confidence · CVE-2026-88178
6 reports
Part of Microsoft Windows Video ActiveX Control Vulnerability
- Microsoft Windows Video ActiveX Control Remote Code Execution Vulnerability
- Microsoft named a Leader in the 2026 Gartner® Magic Quadrant™ for AI Agent Management Platforms
- UEFI bootkit infected fully patched Windows machines. Is Microsoft to blame?
- Path Traversal in .NET allows an authorized attacker to elevate privileges locally
Same event, different frames
Distinct often headline the same incident differently.
Pulse
Last checked 5d ago · Recheck overdue since 4 Nov 2026, 08:34 UK time
Signal
3 Nov 2026, 08:34 UK time · 5d ago
in the next 30 days first recorded at 1.0% (lower likelihood signal, not confirmed exploitation).
recorded — watch for changes; not confirmed exploitation.
Drag to pan · Ctrl / ⌘ + scroll or pinch to zoom5 events
2 quiet checks hidden.
Sources
CVE-2026-88178 Microsoft Office PowerPoint Remote Code Execution Vulnerability
- QualysNews
Microsoft Patch Tuesday, October 2026 Security Update Review
- Cisco Talos BlogNews
Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities
How we know
Statements extracted from sources. Higher confidence means stronger corroboration.
- ClaimedHeadline60% confidence
Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities
- ProbableSummary fact75% confidence
Microsoft Patch Tuesday for October 2026 — Snort rules and prominent vulnerabilities Talos intelligence and world-class threat research team better protects you and your organisation against known and emerging cybersecurity threats.