| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network. |
| Improper privilege management in Windows Remote Desktop allows an authorized attacker to elevate privileges locally. |
| Improper input validation in Power BI allows an authorized attacker to execute code over a network. |
| Time-of-check time-of-use (toctou) race condition in GitHub Copilot and Visual Studio allows an authorized attacker to execute code over a network. |
| Cleartext storage of sensitive information in Azure Compute Gallery allows an authorized attacker to disclose information over a network. |
| Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network. |
| Heap-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally. |
| Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Connected Devices Platform Service allows an authorized attacker to elevate privileges locally. |
| Use after free in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally. |
| Use after free in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally. |
| Heap-based buffer overflow in Microsoft Graphics Component allows an authorized attacker to elevate privileges locally. |
| Improper input validation in Windows Hyper-V allows an authorized attacker to execute code locally. |
| Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. |
| Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network. |
| Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. |
| Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally. |
| Server-side request forgery (ssrf) in Azure DevOps Server allows an authorized attacker to perform spoofing over a network. |
| Improper link resolution before file access ('link following') in Windows App for Mac allows an authorized attacker to elevate privileges locally. |
| Access of resource using incompatible type ('type confusion') in Desktop Window Manager allows an authorized attacker to elevate privileges locally. |
| WARNING:
Users of 6.x should upgrade to 6.2.4 or later as the fix was missed in previous 6.x releases.
See the following for more details:
https://activemq.apache.org/security-advisories.data/CVE-2026-40046-announcement.txt
https://www.cve.org/CVERecord?id=CVE-2026-40046
Original Report:
Apache ActiveMQ does not properly validate the remaining length field which may lead to an overflow during the decoding of malformed packets. When this integer overflow occurs, ActiveMQ may incorrectly compute the total Remaining Length and subsequently misinterpret the payload as multiple MQTT control packets which makes the broker susceptible to unexpected behavior when interacting with non-compliant clients. This behavior violates the MQTT v3.1.1 specification, which restricts Remaining Length to a maximum of 4 bytes. The scenario occurs on established connections after the authentication process. Brokers that are not enabling mqtt transport connectors are not impacted.
This issue affects Apache ActiveMQ: before 5.19.2, 6.0.0 to 6.1.8, and 6.2.0
Users are recommended to upgrade to version 5.19.2, 6.1.9, or 6.2.1, which fixes the issue. |
