Patch tracker / CVE reference / CVE-2026-65660

CVE-2026-65660

CVE-2026-65660 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 8.8 (High). It is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it in the wild, which makes it a fix-first item. Microsoft has shipped the fix: deploy one of the 5 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

HighCISA KEV

8.8

CVSS v3

2.1%

EPSS, 30 days

High

Severity

Yes

Exploited in the wild

Listed in the CISA Known Exploited Vulnerabilities catalog, confirmed exploited in the wild. EPSS exploit probability 2.1%. CVSS 8.8 (High).

This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability, and one of 2 actively-exploited CVEs in August 2026.

Senserva Watchevery change we have recorded for this one

What changed, and when

CISA confirmed active exploitation of CVE-2026-65660 on 2026-09-25.

Drawn by Senserva Vivid from the Senserva change record. Hover any point for its date and value.

2026-08-27 CVSS 6.5 to 8.8
2026-09-25 EPSS first scored at 2.0%; added to the CISA KEV catalog by CISA
2026-09-26 EPSS 2.0% to 2.1%
2026-09-29 CVSS 8.8 to 0.0; CVSS 0.0 to 9.3
2026-10-03 CVSS 9.3 to 8.8
2026-10-05 CVSS 8.8 to 0.0; CVSS 0.0 to 9.3
2026-10-06 CVSS 9.3 to 0.0; CVSS 0.0 to 9.3
2026-10-07 CVSS 9.3 to 8.8
2026-10-09 CVSS 8.8 to 0.0; CVSS 0.0 to 9.3
2026-10-10 CVSS 9.3 to 8.8

Recorded by Senserva on the dates shown, from CISA KEV and FIRST EPSS. This is what moved and when, which neither the vendor advisory nor NVD publishes.

Senserva AI Opinion and rich prompt for CVE-2026-65660

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

I am an IT admin assessing a vulnerability. Facts for CVE-2026-65660 (source: https://senserva.com/cve/CVE-2026-65660.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed daily (early morning US Central)):
- CVE-2026-65660: Microsoft vulnerability, Microsoft rating Important, CVSS 8.8 (High)
- EPSS 30-day exploitation probability: 2.1%
- Actively exploited (CISA KEV): YES
- Fixed by: KB5002893, KB5002894, KB5002896, KB5002905, KB5002906
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) What to patch or mitigate first. 4) How to check whether my devices are exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Patch now

Exploited in the wild: confirmed by the CISA KEV catalog, not predicted.

Fixed by KB5002893 and 4 more (by build, listed below). Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.

Do this now: Patch now and verify deployment on every exposed device.

Official patch(es) for CVE-2026-65660

Treat as urgent: it is being exploited in the wild (CISA KEV), so patch ahead of items that are not. In Intune or Defender, confirm whether the fixing updates KB5002893, KB5002894, KB5002896, KB5002905, KB5002906 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.

Apply the Microsoft security updates below to fix CVE-2026-65660. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.

KB5002893 KB5002894 KB5002896 KB5002905 KB5002906

Scope and sources

Affected products

Fixed by the same updates

CVE-2026-58639 CVE-2026-62829 CVE-2026-62837 CVE-2026-62839 CVE-2026-62917 CVE-2026-63512 CVE-2026-63516 CVE-2026-64897

Authoritative references

Official CVE record (cve.org)NVD detail Microsoft MSRC CISA KEV catalog FIRST.org EPSS

Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.