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Microsoft

Vendor security scorecard – 20603 CVEs in the selected period

Period: 30d 90d 6m 1y All
Risk 111827
20603
CVEs
2694
Critical
11570
High
420
KEV
2200
PoC
5392
Unpatched C/H
61.4%
Patch Rate
6.8%
Avg EPSS

Severity Breakdown

CRITICAL
2694
HIGH
11570
MEDIUM
5986
LOW
346

Monthly CVE Trend

Top Risky CVEs

CVE Summary Severity CVSS EPSS Priority Signals
CVE-2017-7269 Remote code execution in Microsoft IIS 6.0 WebDAV service allows unauthenticated attackers to execute arbitrary code by sending a specially crafted PROPFIND request with a malicious 'If' header. Confirmed actively exploited (CISA KEV) since July-August 2016, predating public disclosure by 7+ months. EPSS score of 94.43% (100th percentile) reflects widespread exploitation against legacy Windows Server 2003 R2 systems still exposed to the internet. Multiple public exploits exist including Metasploit modules, and vendor patch has been available since March 2017. CRITICAL 9.8 94.4% 238
KEV PoC
CVE-2015-5119 Remote code execution in Adobe Flash Player 11.x through 18.x allows unauthenticated network attackers to execute arbitrary code via crafted Flash content exploiting a use-after-free flaw in the ByteArray class. Confirmed actively exploited (CISA KEV) in July 2015 following the Hacking Team data breach, which exposed weaponized exploit code targeting this vulnerability. With EPSS score of 93.21% (100th percentile) and publicly available proof-of-concept, this represents critical risk to unpatched Flash installations across Windows, OS X, and Linux platforms. Vendor-released patches available via Adobe APSB15-16. CRITICAL 9.8 93.2% 237
KEV PoC
CVE-2015-3113 Adobe Flash Player contains a heap-based buffer overflow that allows remote code execution, exploited as a zero-day in June 2015 by APT3 (a Chinese cyber espionage group) in phishing campaigns targeting aerospace and defense organizations. CRITICAL 9.8 92.4% 236
KEV PoC
CVE-2011-2462 Adobe Reader and Acrobat contain an unspecified U3D component vulnerability causing memory corruption that allows remote code execution, exploited as a zero-day in December 2011 through crafted PDF files. CRITICAL 9.8 91.9% 236
KEV PoC No patch
CVE-2020-0796 A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution. Rated critical severity (CVSS 10.0), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. CRITICAL 10.0 99.8% 235
KEV PoC
CVE-2021-34473 Microsoft Exchange Server contains a pre-authentication SSRF vulnerability known as 'ProxyShell' that allows unauthenticated attackers to access Exchange backend services and achieve remote code execution when chained with CVE-2021-34523 and CVE-2021-31207. CRITICAL 9.1 94.2% 235
KEV PoC
CVE-2025-53770 Microsoft SharePoint Server contains a deserialization vulnerability allowing unauthenticated remote code execution over the network, with active exploitation confirmed and patches pending full release. CRITICAL 9.8 90.5% 235
KEV PoC No patch
CVE-2021-26855 Microsoft Exchange Server contains a server-side request forgery (SSRF) vulnerability known as 'ProxyLogon' that allows unauthenticated attackers to access Exchange backend services, chain with other vulnerabilities for full server compromise. The most impactful Exchange vulnerability in history. CRITICAL 9.1 94.0% 234
KEV PoC
CVE-2021-34523 Microsoft Exchange Server contains a privilege escalation vulnerability in the PowerShell backend that allows authenticated Exchange users to escalate to Exchange admin, the second component of the ProxyShell attack chain. CRITICAL 9.0 93.9% 234
KEV PoC
CVE-2021-38647 Open Management Infrastructure Remote Code Execution Vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available. CRITICAL 9.8 99.7% 234
KEV PoC
CVE-2021-40444 Windows MSHTML component contains a remote code execution vulnerability that allows attackers to craft malicious ActiveX controls in Office documents, exploited as a zero-day in targeted attacks before the September 2021 patch. HIGH 8.8 94.3% 233
KEV PoC
CVE-2012-0158 Remote code execution in Microsoft MSCOMCTL.OCX ActiveX controls allows unauthenticated attackers to execute arbitrary code via maliciously crafted Office documents, RTF files, or web pages. Actively exploited since April 2012 and confirmed in CISA KEV catalog. Despite being patched in 2012, EPSS score of 94.32% (100th percentile) indicates continued exploitation attempts against unpatched systems. Affects broad Microsoft product ecosystem including Office 2003-2010, SQL Server 2000-2008 R2, BizTalk, Commerce Server, Visual FoxPro, and Visual Basic 6.0 Runtime. HIGH 8.8 94.3% 233
KEV PoC
CVE-2017-0144 Remote code execution in Microsoft SMBv1 allows authenticated network attackers to execute arbitrary code on Windows systems via crafted packets. This vulnerability (part of the MS17-010 bulletin and known as 'EternalBlue') is confirmed actively exploited (CISA KEV) with EPSS score of 94.32%, indicating near-certain exploitation probability. Widely weaponized in 2017 WannaCry and NotPetya ransomware campaigns. Affects Windows Vista through Windows 10 1607 and Windows Server 2008-2016, plus Siemens medical imaging systems running vulnerable Windows embedded OS. Multiple public exploits available including DOUBLEPULSAR payload delivery framework. HIGH 8.8 94.3% 233
KEV PoC
CVE-2011-0611 Adobe Flash Player contains a type confusion vulnerability in object handling that allows remote attackers to execute arbitrary code via malicious SWF content, actively exploited in targeted attacks in April 2011. HIGH 8.8 93.6% 233
KEV PoC
CVE-2014-0322 Internet Explorer 9 and 10 contain a use-after-free vulnerability in CMarkup object handling exploitable via crafted JavaScript, used in 'Operation SnowMan' watering hole attacks targeting US military and defense in early 2014. HIGH 8.8 93.2% 232
KEV PoC

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