ZDI lists November 2026 Microsoft fixes, one Outlook bug exploited
CVE-2026-124194 is the only listed flaw marked exploited; it is a Moderate CVSS 6.5 spoofing bug.
74
CVE-2026-118292
Stack buffer overflow in Microsoft Excel (user opens content)
- CVSS 3.1
- 8.8 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A stack-based buffer overflow in Microsoft Office Excel lets an unauthorized attacker run code. The flaw is reachable over the network with no privileges, but the user must interact (for example by opening attacker-controlled content). Successful exploitation can fully compromise confidentiality, integrity, and availability on the affected system. Microsoft has not listed affected builds.
What to do: Apply Microsoft's update for CVE-2026-118292. Microsoft has not stated a fixed version or workaround.
| Product | Affected |
|---|---|
| Microsoft Office Excel | — |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
- Weakness
- CWE-121
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H