CVE-2026-54127
published 2026-07-14CVE-2026-54127: Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
PriorityP342high7.4CVSS 3.1
AVLACHPRNUINSUCHIHAH
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_11_version_24h2 | >= 10.0.26100.0 < 10.0.26100.8875 | 10.0.26100.8875 |
| microsoft | windows_11_version_25h2 | >= 10.0.26200.0 < 10.0.26100.8875 | 10.0.26100.8875 |
| microsoft | windows_11_version_26h1 | >= 10.0.28000.0 < 10.0.28000.2525 | 10.0.28000.2525 |
| microsoft | windows_server_2022 | >= 10.0.20348.0 < 10.0.20348.5386 | 10.0.20348.5386 |
| microsoft | windows_server_2025 | >= 10.0.26100.0 < 10.0.26100.33158 | 10.0.26100.33158 |
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No advisories linked to this vulnerability.
No detection rules found.
No public exploits indexed.
Rapid7
Patch Tuesday - July 2026
blogs_rapid7·2026-07-14·CVSS 9.6
CVE-2026-58617 [CRITICAL] Patch Tuesday - July 2026
Microsoft is publishing 622 vulnerabilities on July 2026 Patch Tuesday , including a record-breaking 416 Windows vulnerabilities. Microsoft is aware of exploitation in the wild for two of the vulnerabilities published today, both of which are listed on CISA KEV, as well as public disclosure for one other. As usual, browser vulns are not included in the Patch Tuesday count above. Rapid7 noted last month that Microsoft no longer enumerates Chromium CVEs in the Security Update Guide. However, Microsoft has now taken the pursuit of minimalism much further, since today’s Security Update Guide no longer lists out even Microsoft vulnerabilities! Instead, we now receive a summary table of vulnerability counts by product family, as well as a new slimline “Notable CVEs” section. All of this only ser
Talos
Microsoft Patch Tuesday for July 2026 — Snort rules and prominent vulnerabilities
blogs_talos·2026-07-14·CVSS 8.8
CVE-2026-56155 [HIGH] Microsoft Patch Tuesday for July 2026 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for July 2026 — Snort rules and prominent vulnerabilities
Microsoft has released its monthly security update for July 2026, which includes 622 vulnerabilities affecting a range of products, including 57 that Microsoft marked as "critical".
Microsoft notes that two of the vulnerabilities disclosed this month have been exploited in the wild.
CVE-2026-56155 is an important-severity elevation of privilege vulnerability in Active Directory Federation Services (AD FS) caused by insufficient granularity of access control. An authorized attacker could use it to elevate privileges locally.
CVE-2026-56164 is a moderate-severity vulnerability in Microsoft SharePoint Server caused by missing authentication for a critical function. An unauthorized attacker could exploit i
Sans Isc
Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here , (Tue, Jul 14th)
blogs_sans_isc·2026-07-14·CVSS 6.1
CVE-2026-56155 [MEDIUM] Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here , (Tue, Jul 14th)
Microsoft Patch Tuesday July 2026 - The AI Acopolypse is Here
Published: 2026-07-14. Last Updated: 2026-07-14 19:14:58 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
This patch Tuesday includes a staggering 622 vulnerabilities, not including another 427 vulnerabilities in Chromium, affecting Microsoft's Edge browser. 62 of the vulnerabilities are rated critical. One was disclosed before today, and two have already been exploited.
Given the large number of vulnerabilities, it is difficult to point out "noteworthy" issues.
Already exploited vulnerabilities:
CVE-2026-56155 : Active Directory Federation Services Elevation of Privilege Vulnerability. This is an important (not critical) vulnerablity.
CVE-2026-56164: Microsoft SharePoint Server Elevation of Privilege Vulnerability. Micr
Qualys
Microsoft and Adobe Patch Tuesday, July 2026 Security Update Review
blogs_qualys·2026-07-14
CVE-2026-50661 Microsoft and Adobe Patch Tuesday, July 2026 Security Update Review
## Table of Contents
Microsoft Patch Tuesday forJuly2026
Adobe Patch for July 2026
Zero-day Vulnerabilities Patched inJulyPatch Tuesday Edition
Critical Severity Vulnerabilities Patched inJulyPatch Tuesday Edition
Other Microsoft Vulnerability Highlights
Microsoft Release Summary
Qualys Monthly Webinar Series
Microsoft’s July 2026 Patch Tuesday delivers security updates for a broad range of products and services, including several vulnerabilities that pose significant risks to enterprise environments. As attackers continue to target unpatched systems, the timely deployment of these updates remains one of the most effective defenses against exploitation. This blog provides an overview of the month’s key security fixes, highlights the most critical vulnerabilities, and offers guidanc
2026-07-14
Published