3756
CVEs
319
Critical
2366
High
19
KEV
171
PoC
229
Unpatched C/H
91.7%
Patch Rate
0.4%
Avg EPSS
Severity Breakdown
CRITICAL
319
HIGH
2366
MEDIUM
1006
LOW
59
Monthly CVE Trend
Affected Products (30)
Windows Server 2016
4942
Windows Server 2019
4718
Windows Server 2012
4033
Windows Server 2022
3196
Windows Server 2008
3091
Windows 10
2872
Windows 8 1
2102
Windows 7
2087
Windows 10 1809
2052
Windows 10 22h2
2018
Windows 10 21h2
2006
Windows Rt 8 1
1940
Windows 10 1607
1788
Windows Server 2025
1779
Windows 11 23h2
1638
Windows 11 22h2
1511
Windows 11 24h2
1334
Windows Server 2022 23h2
1311
Windows
1234
Windows 10 1507
1102
Internet Explorer
988
Windows 11 21H2
973
Flash Player
760
Office
748
Edge
725
Windows 11 25h2
643
365 Apps
614
Windows 11 26h1
509
Sharepoint Server
502
Windows 11
495
Top Risky CVEs
| CVE | Summary | Severity | CVSS | EPSS | Priority | Signals |
|---|---|---|---|---|---|---|
| CVE-2026-50522 | Remote code execution in Microsoft SharePoint Server (2016, 2019, and Subscription Edition) lets an unauthenticated attacker run arbitrary code by sending a crafted serialized payload over the network. The flaw is an untrusted-data deserialization (CWE-502) rated CVSS 9.8 with PR:N/UI:N, meaning no credentials or user interaction are required. No public exploit identified at time of analysis, but the pre-auth network vector and SharePoint's long history as an attacker target make this a high-priority patch. | CRITICAL | 9.8 | 19.7% | 159 |
KEV
PoC
|
| CVE-2026-58644 | Remote code execution in Microsoft SharePoint (Enterprise Server 2016, Server 2019, and Server Subscription Edition) allows an unauthenticated network attacker to run arbitrary code on the server by submitting maliciously crafted serialized data (CWE-502). The CVSS 3.1 base score is 9.8 with a fully remote, no-interaction, no-privilege vector (AV:N/AC:L/PR:N/UI:N), placing it among the most severe SharePoint flaws. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but insecure-deserialization RCE in SharePoint has historically been a high-value target for rapid weaponization. | CRITICAL | 9.8 | 1.3% | 150 |
KEV
PoC
|
| CVE-2026-55040 | Security feature bypass in Microsoft SharePoint (Enterprise Server 2016, Server 2019, and Server Subscription Edition) lets a network-based, unauthenticated attacker defeat a weak-authentication protection mechanism (CWE-1390) to gain high-impact access to confidentiality and integrity. Rated CVSS 9.1 with no attacker privileges or user interaction required, this is a serious pre-authentication issue in a widely deployed collaboration platform. Microsoft has published a fix, and there is no public exploit identified at time of analysis. | CRITICAL | 9.1 | 0.7% | 146 |
KEV
PoC
|
| CVE-2026-56164 | Privilege elevation in Microsoft SharePoint Server (Enterprise Server 2016, Server 2019, and Subscription Edition) lets an unauthenticated network attacker reach a security-critical function that lacks any authentication check (CWE-306), gaining elevated privileges on the target farm. The flaw is confirmed actively exploited (CISA KEV) with publicly available exploit code, and its CVSS 3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N) reflects fully remote, unauthenticated exploitation with high confidentiality, integrity, and availability impact. Microsoft has released a patch via MSRC. | CRITICAL | 9.8 | 7.0% | 142 |
KEV
PoC
|
| CVE-2026-50751 | Authentication bypass in Check Point Quantum Security Gateway and Spark Firewalls allows unauthenticated remote attackers to establish Remote Access and Mobile Access VPN sessions without valid credentials by abusing a logic flaw in deprecated IKEv1 certificate validation. The flaw (CVSS 9.3, CWE-287) was reported by Check Point themselves and publicly available exploit code exists, though EPSS exploitation probability remains very low (0.01%) and the issue is not currently listed in CISA KEV. Affected deployments include multiple Quantum R80.40-R82.10 trains and Spark R80.20.X-R82.00.X firmware. | CRITICAL | 9.3 | 0.0% | 137 |
KEV
PoC
No patch
|
| CVE-2026-33825 | Privilege escalation in Microsoft Defender Antimalware Platform versions before 4.18.26030.3011 allows authenticated local attackers to gain elevated system privileges through insufficiently granular access controls. CVSS 7.8 (High) reflects local attack vector requiring low privileges. EPSS score of 0.04% (12th percentile) indicates low probability of widespread exploitation. Microsoft has released a patched version (4.18.26030.3011) addressing the access control deficiency. | HIGH | 7.8 | 0.0% | 129 |
KEV
PoC
|
| CVE-2026-69836 | Remote code execution in Microsoft Entra ID lets an unauthenticated network attacker run arbitrary code by submitting maliciously crafted serialized data that the service deserializes without validation (CWE-502). The CVSS 3.1 base score is a maximum 10.0 with a scope change, reflecting unauthenticated network reach and full compromise of confidentiality, integrity, and availability. There is no public exploit identified at time of analysis, and the issue is not listed in CISA KEV, but the combination of a cloud identity platform and PR:N/UI:N makes this an urgent-patch candidate. | CRITICAL | 10.0 | 1.4% | 126 |
KEV
PoC
|
| CVE-2026-41091 | Local privilege escalation in Microsoft Defender (Malware Protection Engine) enables an authenticated low-privileged attacker to elevate to SYSTEM by abusing improper link resolution (CWE-59) before file access. The flaw scores CVSS 7.8 with high impact to confidentiality, integrity, and availability, and no public exploit is identified at time of analysis. Microsoft has released a patch via MSRC, and there is no current CISA KEV listing or EPSS signal indicating active mass exploitation. | HIGH | 7.8 | 12.1% | 126 |
KEV
PoC
|
| CVE-2026-45659 | Authenticated remote code execution in Microsoft SharePoint (Enterprise Server 2016, Server 2019, and Subscription Edition) stems from unsafe deserialization of untrusted data (CWE-502), enabling an authorized attacker to run arbitrary code on the server over the network. CVSS 8.8 with low privileges required and no user interaction makes this attractive to post-authentication adversaries, though no public exploit identified at time of analysis and CVSS temporal data marks exploit code maturity as Unproven. | HIGH | 8.8 | 0.5% | 125 |
KEV
PoC
|
| CVE-2026-42897 | Cross-site scripting (XSS) in Microsoft Exchange Server enables remote attackers to spoof content and steal credentials without authentication. Affects Exchange Server 2016 CU23, 2019 CU14/CU15, and Subscription Edition. Functional exploit code exists (CVSS temporal E:F) though no active exploitation confirmed at analysis time. CVSS 8.1 (High) driven by network vector, no authentication requirement, and dual confidentiality/integrity impact. Microsoft released patches via MSRC security update guide. Medium-high priority for organizations running affected Exchange versions with webmail or OWA exposed. | MEDIUM | 6.1 | 0.2% | 121 |
KEV
PoC
|
| CVE-2026-33824 | Remote code execution in Windows IKE Extension (Internet Key Exchange) via double free memory corruption allows unauthenticated network attackers to execute arbitrary code on Windows 10 (1607-22H2), Windows 11 (22H3-26H1), and Windows Server (2016-2025). CVSS 9.8 critical severity with network vector requiring no authentication or user interaction. Vendor patch released by Microsoft addresses CWE-415 double free weakness. EPSS score of 0.07% (21st percentile) suggests low observed exploitation probability despite critical severity rating, indicating this may be a targeted or difficult-to-exploit vulnerability in production environments. No CISA KEV listing or public POC identified at time of analysis. | CRITICAL | 9.8 | 0.1% | 119 |
KEV
PoC
|
| CVE-2026-8398 | Supply chain compromise of DAEMON Tools Lite for Windows delivered trojanized installers through the legitimate vendor website daemon-tools.cc from April 8 to May 5, 2026. Attackers compromised AVB Disc Soft's build infrastructure and injected malicious code into three binaries (DTHelper.exe, DiscSoftBusServiceLite.exe, DTShellHlp.exe), all signed with the vendor's legitimate code-signing certificate. This allowed remote attackers to achieve arbitrary code execution on systems installing affected versions (12.5.0.2421 through 12.5.0.2434) with no user interaction required beyond normal installation. The legitimate digital signature bypassed security controls that rely on code-signing verification, making detection extremely difficult during the compromise window. | CRITICAL | 9.3 | 0.0% | 117 |
KEV
PoC
|
| CVE-2026-81963 | Symlink following (CWE-59) in the Windows Update Stack enables a locally authenticated attacker with standard user privileges to elevate to SYSTEM on multiple Windows 11 and Windows Server 2025 builds. The vulnerability is confirmed actively exploited per CISA KEV, with full confidentiality, integrity, and availability impact following privilege escalation. Vendor-released patches are available for all identified affected builds and should be treated as an urgent patching priority. | HIGH | 7.8 | 0.6% | 115 |
KEV
PoC
|
| CVE-2026-85880 | Heap-based buffer overflow in the Windows Advanced Local Procedure Call (ALPC) subsystem enables a low-privileged local attacker to elevate privileges to SYSTEM level across a broad range of Windows 10 and Windows Server releases. The flaw (CWE-122) resides in ALPC's message-handling internals, where crafted IPC payloads can corrupt heap memory in a way that redirects execution. No public exploit has been identified at time of analysis, and Microsoft has released patches covering all affected builds. | HIGH | 7.8 | 0.6% | 115 |
KEV
PoC
|
| CVE-2026-56155 | Local privilege escalation in Microsoft Active Directory Federation Services (AD FS) lets an already-authenticated low-privileged user on the host gain higher privileges due to insufficient granularity of access control (CWE-1220). Affected deployments span AD FS on Windows Server 2012 through Windows Server 2025, and the flaw carries a CVSS 7.8 with high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, so this is a patch-priority-driven rather than exploitation-driven risk. | HIGH | 7.8 | 0.4% | 114 |
KEV
PoC
|