Patch tracker / CVE reference / CVE-2026-26137

CVE-2026-26137

High severity Microsoft vulnerability.

An Elevation of Privilege vulnerability affecting a Microsoft product.

High

Risk summary

CVSS base
-
Severity
High
Actively exploited
Not listed

Ask your own AI about CVE-2026-26137

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

Tracking and change history

Published
2026-03-19
Last revised
2026-03-26
Changes tracked
1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

How to fix CVE-2026-26137

Apply the latest Microsoft security update for the affected product. Most environments deliver it automatically through Intune update rings, Windows Update for Business, Windows Autopatch, or WSUS; for a manual install, download from the Microsoft Update Catalog. The MSRC advisory lists the exact patched build per product.

Microsoft MSRC advisoryNVD detail

Common questions about CVE-2026-26137

Is CVE-2026-26137 actively exploited?

It is not currently listed in the CISA Known Exploited Vulnerabilities catalog. That can change: unexploited CVEs regularly get weaponized months after disclosure, which is why patching on your normal cadence matters.

What fixes CVE-2026-26137?

Microsoft ships the fix in its security updates. Apply the latest cumulative or security update for the affected product through Windows Update, Intune, Windows Update for Business, or the Microsoft Update Catalog, and see the MSRC advisory below for the exact build.

Which products are affected by CVE-2026-26137?

See the Microsoft MSRC advisory for the affected product list.

Can I ask my own AI about CVE-2026-26137?

Yes. This page includes a free, ready-to-paste AI prompt with CVE-2026-26137's key facts: severity, CVSS, CISA KEV status, and the affected products. Copy it into Claude, ChatGPT, or Copilot for a triage plan.

Authoritative references

CVE recordNVD detailMicrosoft MSRC

Every Microsoft CVE and the patches that fix it, ranked by real-world risk: the Microsoft Patch Tracker. The full searchable CVE reference: CVE and vulnerability management.

Get this as data: free feeds and API

Every patch and CVE on this site is available as free, machine-readable data via the Senserva Hot Patches feeds and JSON API: a unique, daily-ranked list of the Microsoft patches and CVEs of most interest, plus RSS and a Patch Tuesday calendar. No login or key. Pull it into your SIEM, RMM, scripts, or spreadsheets.

Senserva free feeds & APIHot Patches (hot.json)

Free to use with attribution: display "Patch Data Provided by Senserva" with a link to the feeds page.

Sponsored by Senserva

Siemserva by Senserva reports patch status for your own devices: which ones are exposed to CVE-2026-26137, for example, ranked by what attackers actually exploit.

  • Patch status in one scan: which devices are affected, which are not
  • Missing updates ranked by CISA KEV and EPSS, so you fix the right things first
  • Data from Intune, Microsoft Defender, Windows Autopatch, and Azure Update Manager, with more sources on the way
  • Third-party app patching too: updates published to Intune by PatchMyPC, Scappman, Robopack, or any vendor, read vendor-neutrally
  • Optional AI Enhanced Reporting: plain-language summaries and recommended next steps written into your reports
  • Then go further: 650+ security checks, compliance evidence, and Senserva Trustworthy AI driven configuration remediation
Senserva patching for Microsoft 365
Two minutes, click to play

Patching in action in two minutes. Watch page · All videos.

SenservaPATCHINGTenant: Contoso Manufacturing ▾OverviewAutopatch healthDevicesAsk SenservaExport Patch Status Report
3 actively exploited CVEs are unmitigated on devices in this tenant, per CISA KEV.View fix-first list ↓
312
Devices scanned
Intune + Autopatch + Defender
3
Exploited updates missing
CISA KEV, unmitigated
905
Microsoft updates tracked
Refreshed daily, MSRC + NVD
650+
Security checks in scan
Patch, config, identity, logs

Triage order for this list

Same order in the dashboard, the report, and every AI answer
1st · overrides everything
Actively exploited (KEV)
e.g. KB5040219, CVE-2026-31210
→
2nd · tiebreaker
Severity (Critical → Low)
MSRC + EPSS probability
→
3rd · tiebreaker
Days waiting
Oldest unresolved first

Ranked missing updates, fix-first order

27 findings · showing top 2
#UpdateCVESeveritySourceDevicesWaiting
1KB5040219
Windows 11 23H2 cumulative
CVE-2026-31210
KEV EPSS 0.94		CriticalDefender4119 daysAdd to fix-first
2KB5040088
.NET Framework security update
CVE-2026-29981
KEV		CriticalIntune1712 daysAdd to fix-first
Estimated dashboard, sample data for illustration

Ask Senserva

via Claude + MCP
Which devices are still missing the fix for CVE-2026-31210?
41 devices are missing KB5040219, which resolves CVE-2026-31210. This CVE is on CISA KEV, so CISA BOD 22-01 calls for remediation within 14 days. You are at 19 days and counting.
source: scan_db · defender_posture · kev_join, not model memory
Get Devices Found Get Devices Missing
Get Going with Senserva Senserva patching Built for IT admins and security teams, with audit-ready data for compliance. Senserva is a Microsoft Intelligent Security Association member.
Lexicon: the terms on this page
CVE
Common Vulnerabilities and Exposures. A unique ID for one publicly known vulnerability, such as CVE-2025-1234.
KB
Microsoft Knowledge Base article. The identifier for a specific Microsoft update.
KEV
CISA Known Exploited Vulnerabilities. CVEs confirmed exploited in the wild. Fix these first.
CVSS
Common Vulnerability Scoring System. A standardized Severity score from 0 to 10.
EPSS
Exploit Prediction Scoring System. The probability a CVE will be exploited in the next 30 days.
MSRC
Microsoft Security Response Center. Microsoft's Patch Tuesday advisories and KB-to-CVE mapping.
NVD
National Vulnerability Database (NIST). Authoritative CVE metadata and CVSS scores.
Ransomware
The vulnerability is linked to known ransomware activity.
Reference: Microsoft CVE and vulnerability management, the full CVE-to-patch lookup ranked by real-world risk, and the Microsoft patching guide, how Intune, Windows Autopatch, Defender, and Azure Update Manager fit together.
Data notice: this page, the feeds, and the API are provided as is, for informational purposes only, without warranty of any kind. Senserva, LLC does not guarantee the accuracy, completeness, or timeliness of third-party data (MSRC, NVD, CISA KEV, EPSS) and accepts no liability for actions taken based on it; verify against the authoritative vendor advisory before acting. Built daily with Senserva Trustworthy AI. All use of this data is subject to the Senserva EULA.