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CVE tracker

New vulnerabilities – clearly explained

Every newly published security vulnerability (CVE), continuously from the NVD, with the actively exploited ones from CISA, the probability of exploitation (EPSS) and public exploits – each one researched individually: what is affected, what helps, what to do.

New CVEs in the last 30 days by severity

  • Critical
  • High
  • Medium
  • Low
  • Not rated
01,0002,0003,000Tue, 6 Oct 2026: 1,014 CVE (Critical 105, High 371, Medium 345, Low 38, Not rated 155)6 OctWed, 7 Oct 2026: 340 CVE (Critical 53, High 131, Medium 145, Low 9, Not rated 2)Thu, 8 Oct 2026: 496 CVE (Critical 62, High 194, Medium 219, Low 21)Fri, 9 Oct 2026: 315 CVE (Critical 42, High 152, Medium 105, Low 11, Not rated 5)Sat, 10 Oct 2026: 412 CVE (Critical 78, High 143, Medium 178, Low 13)Sun, 11 Oct 2026: 229 CVE (Critical 16, High 73, Medium 101, Low 39)11 OctMon, 12 Oct 2026: 674 CVE (Critical 48, High 264, Medium 282, Low 80)Tue, 13 Oct 2026: 2,303 CVE (Critical 170, High 1,361, Medium 729, Low 43)Wed, 14 Oct 2026: 824 CVE (Critical 92, High 374, Medium 285, Low 30, Not rated 43)Thu, 15 Oct 2026: 546 CVE (Critical 51, High 232, Medium 244, Low 19)Fri, 16 Oct 2026: 465 CVE (Critical 53, High 179, Medium 219, Low 14)16 OctSat, 17 Oct 2026: 100 CVE (Critical 4, High 42, Medium 50, Low 4)Sun, 18 Oct 2026: 549 CVE (Critical 10, High 55, Medium 65, Low 19, Not rated 400)Mon, 19 Oct 2026: 437 CVE (Critical 32, High 133, Medium 206, Low 66)Tue, 20 Oct 2026: 1,923 CVE (Critical 169, High 815, Medium 812, Low 127)Wed, 21 Oct 2026: 542 CVE (Critical 52, High 218, Medium 225, Low 47)21 OctThu, 22 Oct 2026: 492 CVE (Critical 69, High 162, Medium 207, Low 54)Fri, 23 Oct 2026: 492 CVE (Critical 40, High 170, Medium 91, Low 27, Not rated 164)Sat, 24 Oct 2026: 73 CVE (Critical 12, High 20, Medium 35, Low 6)Sun, 25 Oct 2026: 131 CVE (Critical 4, High 35, Medium 66, Low 26)Mon, 26 Oct 2026: 738 CVE (Critical 29, High 218, Medium 335, Low 65, Not rated 91)26 OctTue, 27 Oct 2026: 648 CVE (Critical 69, High 188, Medium 177, Low 33, Not rated 181)Wed, 28 Oct 2026: 626 CVE (Critical 35, High 224, Medium 214, Low 31, Not rated 122)Thu, 29 Oct 2026: 537 CVE (Critical 82, High 204, Medium 223, Low 22, Not rated 6)Fri, 30 Oct 2026: 668 CVE (Critical 45, High 220, Medium 262, Low 30, Not rated 111)Sat, 31 Oct 2026: 112 CVE (Critical 11, High 44, Medium 51, Low 1, Not rated 5)31 OctSun, 1 Nov 2026: 98 CVE (Critical 8, High 24, Medium 27, Low 15, Not rated 24)Mon, 2 Nov 2026: 476 CVE (Critical 26, High 188, Medium 169, Low 20, Not rated 73)Tue, 3 Nov 2026: 732 CVE (Critical 55, High 227, Medium 235, Low 36, Not rated 179)Wed, 4 Nov 2026: 138 CVE (Critical 11, High 51, Medium 19, Low 5, Not rated 52)4 Nov

Per day (UTC); hover over a bar for the figures.

Show as table
DayCriticalHighMediumLowNot ratedTotal
Wed, 4 Nov 2026115119552138
Tue, 3 Nov 20265522723536179732
Mon, 2 Nov 2026261881692073476
Sun, 1 Nov 202682427152498
Sat, 31 Oct 202611445115112
Fri, 30 Oct 20264522026230111668
Thu, 29 Oct 202682204223226537
Wed, 28 Oct 20263522421431122626
Tue, 27 Oct 20266918817733181648
Mon, 26 Oct 2026292183356591738
Sun, 25 Oct 202643566260131
Sat, 24 Oct 20261220356073
Fri, 23 Oct 2026401709127164492
Thu, 22 Oct 202669162207540492
Wed, 21 Oct 202652218225470542
Tue, 20 Oct 202616981581212701,923
Mon, 19 Oct 202632133206660437
Sun, 18 Oct 202610556519400549
Sat, 17 Oct 20264425040100
Fri, 16 Oct 202653179219140465
Thu, 15 Oct 202651232244190546
Wed, 14 Oct 2026923742853043824
Tue, 13 Oct 20261701,3617294302,303
Mon, 12 Oct 202648264282800674
Sun, 11 Oct 20261673101390229
Sat, 10 Oct 202678143178130412
Fri, 9 Oct 202642152105115315
Thu, 8 Oct 202662194219210496
Wed, 7 Oct 20265313114592340
Tue, 6 Oct 2026105371345381551,014

1,456 vulnerabilities · Vendor: Microsoft

CVE-2026-83826High 7.8

Microsoft Windows Error Reporting: Elevation of privilege via untrusted pointer dereference

Windows Error Reporting, the built-in Windows crash-reporting component, contains an untrusted pointer dereference that allows a local attacker to elevate privileges. The attacker needs a valid logon with low privileges on the affected system and must run code locally. A successful attack could grant higher privileges, which is especially relevant on shared or multi-user systems such as terminal servers.

Microsoft · Windows Error Reporting

CVE-2026-83797High 8.8

Windows Partition Management Driver: Out-of-bounds read enables code execution

The Windows Partition Management Driver, a kernel component for disk partition management, contains an out-of-bounds read (CWE-125). According to the CVE record, an unauthorized attacker can execute code over a network. Exploitation requires user interaction (CVSS 8.8, NVD). Microsoft's CNA record lists affected Windows 10, Windows 11 and Windows Server builds.

Microsoft · Windows Partition Management Driver

CVE-2026-83795High 7.5

Microsoft Windows: Heap-based buffer overflow in IKE Extension

A heap-based buffer overflow in the Windows Internet Key Exchange (IKE) Extension allows an unauthenticated attacker on the network to crash the IKE service. This causes a denial of service for IPsec and VPN connections on affected hosts. Exposure is highest for Windows hosts that run IPsec, IKEv2 or L2TP VPN roles and accept traffic from the internet. The CNA rates the issue 7.5 (High) with availability impact only.

Microsoft · Windows

CVE-2026-83792High 7.8

Microsoft Windows Device Install Service: Elevation of privilege via incorrect authorization

Incorrect authorization in the Windows Device Install Service allows a local user with low privileges to elevate their privileges on the affected system. An attacker needs an existing local account or foothold, for example from phishing or a compromised user account. The risk is highest on shared workstations, terminal servers and multi-user systems.

Microsoft · Windows Device Install Service

CVE-2026-83791High 7.8

Microsoft Windows: Privilege escalation in Windows Virtual Input

Improper authorization in the Windows Virtual Input component allows a local, authorized attacker to elevate privileges. The NVD CPE lists only Windows 10 1809, but the CNA record covers several further Windows 10, Windows 11 and Windows Server builds. The attacker needs a local foothold and low privileges, for example via a malicious or compromised user account, and the CVSS impact on confidentiality, integrity and availability is high.

Microsoft · Windows

CVE-2026-83790High 7.0

Windows Hello: Use-after-free allows local privilege escalation

A use-after-free vulnerability in the Windows Hello authentication component allows an attacker with local, low-privileged access to elevate privileges. The attack requires a local foothold, such as a compromised user session or malware running as a standard user, and its complexity is high. The flaw is not directly reachable from the internet, but it matters most on shared or poorly segmented workstations.

Microsoft · Windows Hello

CVE-2026-83789Critical 9.8

Windows SMB Client: Heap-based buffer overflow allows privilege escalation

A heap-based buffer overflow (CWE-122) in the Windows SMB Client affects several Windows 10, Windows 11 and Windows Server versions, including Windows 10 version 1607 and Windows Server 2016. A network attacker may be able to elevate privileges. The sources state that the attack generally requires the victim to connect to an attacker-controlled SMB server. The CVSS score conflicts between sources: the CVE data gives 9.8 with no user interaction, while third-party aggregators give 8.8 with user interaction required, so verify the score on NVD.

Microsoft · Windows SMB Client

CVE-2026-83785High 7.0

Windows COM+ Event System Service: Use after free enables local privilege escalation

A use-after-free vulnerability (CWE-416) in the Windows COM+ Event System Service allows an authorized, low-privileged local user to elevate privileges. The attack is not remotely exploitable and requires a local foothold, such as a phished user account or other malware. Successful exploitation could give the attacker high impact on confidentiality, integrity and availability of the system.

Microsoft · Windows

CVE-2026-83784High 8.8

Microsoft Windows EFS: Absolute path traversal allows privilege escalation

Microsoft Windows Encrypting File System (EFS) contains an absolute path traversal flaw (CWE-36) that allows an authorized attacker to elevate privileges over the network. The attacker needs a valid low-privileged account, but no user interaction is required. The CVSS 3.1 base score is 8.8 (High), with total impact on confidentiality, integrity and availability.

Microsoft · Windows

CVE-2026-83783High 7.8

Windows Management Instrumentation: Heap-based buffer overflow (privilege escalation)

A heap-based buffer overflow in Windows Management Instrumentation (WMI), a Windows component, allows a local attacker with low privileges to elevate their privileges. The CVSS 3.1 score is 7.8 (High) with high impact on confidentiality, integrity and availability. An attacker needs a foothold on the system first, for example through a phished user or a compromised low-privilege account, so the flaw is not remotely exploitable on its own.

Microsoft · Windows Management Instrumentation

CVE-2026-83782Critical 9.8

Windows Shell: Remote code execution through heap-based buffer overflow

A heap-based buffer overflow in the Windows Shell component allows an unauthenticated attacker to execute code remotely over the network. The CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates that no privileges or user interaction are required and that the impact on confidentiality, integrity and availability is high. The sources do not describe the exact entry point, so it is unknown whether internet-facing services are needed.

Microsoft · Windows Shell

CVE-2026-83781High 7.8

Microsoft Windows: Local privilege escalation in Program Compatibility Assistant Service

A flaw caused by improper null termination in the Windows Program Compatibility Assistant Service allows an authorized local user to elevate privileges. The attacker needs a low-privilege account on the affected system and local access, so the flaw is not remotely exploitable. A successful attack could give the attacker high confidentiality, integrity and availability impact on the system.

Microsoft · Windows

CVE-2026-83780Critical 9.8

Windows CCFFilter Driver: Use-after-free leads to remote code execution

A use-after-free flaw (CWE-416) in the Windows CCFFilter Driver may allow an attacker to execute code. The CNA scores it CVSS 9.8 as unauthenticated and network-reachable, which would make it critical. ZDI's October 2026 review instead describes it as requiring an authorized local attacker, so the actual exposure is disputed and must be verified against the MSRC advisory. The function of this driver and its default reachability are unknown.

Microsoft · Windows

CVE-2026-83779High 7.8

Windows Installer: Heap-based buffer overflow allows local privilege escalation

A heap-based buffer overflow in Windows Installer (CWE-122) allows a locally authenticated user with low privileges to escalate their privileges on the system. Successful exploitation can lead to a total loss of confidentiality, integrity and availability on the affected host. An attacker needs an existing local foothold, for example through a compromised standard user account, and no user interaction is required.

Microsoft · Windows Installer

CVE-2026-83778High 8.8

Microsoft Internet Messaging API: Heap buffer overflow enables remote code execution

A heap-based buffer overflow in the Microsoft Internet Messaging API, a Windows component, allows an unauthorized attacker to execute code over a network. The CVSS vector requires user interaction (UI:R), which lowers practical risk. CISA rates exploitation as none, and no public proof of concept was found. Exposure depends on whether the component is reachable from outside the network.

Microsoft · Internet Messaging API

CVE-2026-83777High 8.8

Windows Bluetooth Service: Elevation of privilege via heap-based buffer overflow

A heap-based buffer overflow in the Windows Bluetooth Service allows an unauthenticated attacker to elevate privileges. The attack vector is adjacent, so the attacker must be within Bluetooth range of the affected device; no user interaction is required. The CVSS 3.1 score is 8.8 (High), with high impact on confidentiality, integrity and availability.

Microsoft · Windows Bluetooth Service

CVE-2026-83775High 7.0

Windows 10 1607: Race condition in Windows Installer allows privilege escalation

A race condition (improper synchronization of a shared resource) in Windows Installer allows a local user to elevate privileges on Windows 10 version 1607. The attacker needs a valid local account and must win a timing condition, so attack complexity is high. Successful exploitation would give the attacker full control (high confidentiality, integrity and availability impact) on the affected host; the CVSS base score is 7.0 (High).

Microsoft · Windows 10 1607

Sources

The tracker combines official, freely usable data sources – updated continuously:

This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.

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