🔍 Read the full analysis: Microsoft Patch Tuesday: An Attacked Flaw, A Paint Fix, And 1,094 Patches on ThorstenMeyerAI.com
Get business pricing on monitors, keyboards and dev gear
- Business-only prices and quantity discounts
- Tax-exempt purchasing
- Multiple users, one account, clear invoices
TL;DR
Microsoft’s November 10, 2026, security release lists 1,094 Microsoft CVEs, including an Outlook vulnerability that was exploited before a fix was available. A separate Paint flaw has also drawn attention because the version initially identified as fixed reportedly remained vulnerable. Microsoft has not disclosed how many November fixes were found with AI tools.
Microsoft’s November 10, 2026, Patch Tuesday release lists 1,094 Microsoft CVEs, including an Outlook vulnerability the company says was exploited before a fix became available. The release is one of the largest in Microsoft’s records and also comes amid questions about a separate Paint security fix that reportedly did not reach users in the version first identified as patched.
The Outlook issue, CVE-2026-124194, is rated Moderate by Microsoft, with a CVSS score of 6.5. The company marks it as “Exploitation Detected.” The source report says a crafted file can expose a user’s NTLMv2 password hash; the precise attack conditions and scope of exploitation are not detailed in the provided material. The U.S. Cybersecurity and Infrastructure Security Agency added the flaw to its catalog of known exploited vulnerabilities on November 10.
The release also lists 726 Windows CVEs, 174 for Office, 59 for SQL Server and 53 for Developer Tools. Microsoft’s release notes say the release consists of 1,094 Microsoft CVEs. Krebs on Security counted 1,093 fixes published on November 10; the difference is CVE-2026-109469, a Critical Entra Device Registration flaw published November 5. Microsoft says no customer action is needed for that issue.
A separate issue concerns Paint CVE-2026-83844, published October 13. The source report, citing German technology outlet heise, says the Paint version Microsoft initially identified as fixed remained vulnerable. Version 11.2609.401.0 was named on November 6 as the working version, but PC Gamer reported that it was still not appearing for some users. This Paint issue is distinct from the November release’s Outlook vulnerability.
Microsoft Patch Tuesday An Attacked Flaw, a Paint Fix, and 1,094 Patches
Microsoft’s November release includes an Outlook flaw exploited before a fix was available. The separate Paint fix may not yet be reaching all users.
Start with the exploited Outlook flaw
CVE-2026-124194 is rated Moderate, but Microsoft marks it “Exploitation Detected.” CISA added it to its known exploited vulnerabilities catalog on November 10.
Check the relevant updates against the products your organization uses.
Prioritize the Critical server vulnerabilities that apply to your environment.
Verify updates have installed instead of assuming devices are patched.
The counts depend on what is included
Microsoft lists 1,094 CVEs in its release notes. Another count found 1,093 fixes published November 10, excluding an Entra flaw published November 5.
| Release | Listed Microsoft CVEs |
|---|---|
| November 2026 | 1,094 |
| October 2026 | 1,474 |
| September 2026 | 999 |
| November 2025 | 63 |
Check Paint separately
The Paint issue is separate from the Outlook vulnerability. Reports say the version identified as fixed may still not be appearing for some users.
- Check the November advisories and applicable updates.
- The reported impact involves exposure of an NTLMv2 password hash.
- Check the app version and Microsoft Store for updates.
- Version 11.2609.401.0 was named as working, but availability was uneven.
What the release count cannot tell you
A large CVE total does not mean every flaw is equally urgent or exploitable.
Details remain limited
The material does not specify how many users were affected or how long the Outlook flaw was exploited.
No internal total disclosed
The 24 model-related credit lines do not show how many vulnerabilities Microsoft found with AI tools.
Availability is unclear
Reports do not quantify how widespread the update delay is or when distribution will finish.
Prioritize the Exploited Outlook Flaw
The most immediate concern for many readers is not the size of the release but the known exploitation of the Outlook flaw. A vulnerability rated Moderate can still merit prompt attention when attackers have used it, particularly because the reported impact involves exposure of an authentication hash. Microsoft’s rating and exploitation flag are separate pieces of information: the rating describes assessed severity, while the flag indicates observed exploitation.
Administrators must also sort a very large release against the systems they operate. The source report recommends patching Outlook and Office first, then reviewing the Critical server vulnerabilities relevant to each organization. That is guidance from the source report, not a Microsoft-issued order of priority. The Paint reports add a practical complication: installing or checking the named application version may require a separate visit to the Microsoft Store rather than relying only on the usual Windows update process.
The volume matters for security teams because it increases the work of identifying affected products, testing updates and confirming deployment. It does not, by itself, show that every listed vulnerability is equally urgent or exploitable. Microsoft’s release data, as counted in the source report, shows between zero and six flaws marked exploited per month, even as the overall number of listed CVEs rose sharply.
Products Worth Considering
DJI Mini 4K Drone with 4K UHD Camera
Jackery Explorer 300 Portable Power Station with 40W Solar Panel
Amazon Kindle Paperwhite Signature Edition (12th Generation, 2024), 32 GB, Metallic Raspberry
As an affiliate, we earn on qualifying purchases.
How the CVE Count Was Compiled
The November figure is based on Microsoft’s Security Update Guide, which provides monthly release notes and machine-readable data. The source report says the November data file contains 1,342 entries, including 247 attributed to other vendors, largely Chrome vulnerabilities also relevant to Microsoft Edge. It counts 1,095 entries naming Microsoft as the issuing authority, then subtracts one Edge entry to arrive at the 1,094 in Microsoft’s release notes.
That count is far above the same month a year earlier: the report says Microsoft’s November 2025 page listed 63 Microsoft CVEs. It also reports 1,474 in October 2026 and 999 in September. These figures describe listed CVEs, not a direct measure of successful attacks, severity or the number of customers affected. Krebs on Security characterized the November drop as “almost 1,100” fixes and reported 1,093 published that day, excluding the earlier Entra entry.
Microsoft has linked the larger release counts in 2026 partly to improved vulnerability discovery. In May, Microsoft Security Response Center engineering vice president Tom Gallagher wrote that “Advanced AI models are part of the discovery picture and help to accelerate it.” He also cited more mature automation and broader participation by outside researchers, and said Microsoft expected releases to “continue trending larger for some time.” The source report found AI-tool references in credit lines for 24 of the 1,093 November entries published November 10: 23 mention GLM from z.ai and one mentions Claude. Those credits do not reveal how many issues Microsoft found internally with AI.
““Advanced AI models are part of the discovery picture and help to accelerate it.””
— Microsoft Security Response Center engineering vice president Tom Gallagher, in a May post
Paint Availability and Exploit Scope
The supplied material does not establish how many Outlook users or organizations were affected, how long the flaw was exploited before the fix, or whether the attacks were limited to a particular group. Microsoft’s “Exploitation Detected” designation and CISA’s listing confirm that exploitation was reported, but the details of observed activity are not provided here.
It is also unclear how many of the November vulnerabilities Microsoft discovered with AI, including through internal tools. The 24 AI-related researcher credit lines identified in the source report cover only entries whose credits name a model; they cannot measure Microsoft’s internal use. For Paint, the reports say the corrected version was not appearing for some users, but do not quantify how widespread the availability issue is or explain when distribution will be complete.
Apply Updates and Check Paint
Organizations should review Microsoft’s November advisories and assess the Outlook and Office updates against their installed products, then prioritize Critical server fixes that apply to their environments. CISA’s exploited-vulnerability listing is another signal for security teams to check their exposure and remediation status. Users should confirm that updates have installed rather than assuming that a release announcement means a device is already patched.
For Paint, users can check the app’s version and look for updates through the Microsoft Store, while keeping in mind that the source reports uneven availability. Further information is needed from Microsoft or subsequent reporting to clarify the rollout, the scope of Outlook exploitation and the share of November’s vulnerabilities associated with AI-assisted discovery.
Key Questions
How many CVEs did Microsoft list in its November 2026 release?
Microsoft’s November 10 release notes list 1,094 Microsoft CVEs. Krebs on Security counted 1,093 published that day; the additional Entra Device Registration flaw had been published on November 5.
Which vulnerability was reported as exploited?
CVE-2026-124194, an Outlook spoofing vulnerability rated Moderate with a CVSS score of 6.5, is marked “Exploitation Detected” in the source material. CISA added it to its known exploited vulnerabilities catalog on November 10.
What is the concern about the Paint security fix?
The source report says the Paint version initially identified as fixed for CVE-2026-83844 remained vulnerable, according to heise. Version 11.2609.401.0 was named on November 6 as the working version, though PC Gamer reported it was not yet appearing for some users.
Did AI account for most of the November fixes?
That is not established. Microsoft says AI is part of its vulnerability discovery process, but it has not disclosed how many November fixes came from AI. The source report found 24 researcher credit lines that mention an AI model, which does not measure Microsoft’s internal use.
Source: ThorstenMeyerAI.com
