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Search Results (50051 CVEs found)
| CVE | Vendors | Products | Updated | CVSS v3.1 |
|---|---|---|---|---|
| CVE-2026-7828 | 1 Uvnc | 1 Ultravnc | 2026-07-09 | 5.3 Medium |
| UltraVNC repeater through 1.8.2.2 contains an integer overflow in the HTTP request logging path. In repeater/webgui/settings.c:336, the win_log() function allocates list nodes via malloc(sizeof(struct LIST) + strlen(line)), where line is derived from HTTP request URIs. If strlen(line) is sufficiently large, the addition overflows to a value smaller than sizeof(struct LIST), causing a heap allocation smaller than required. The subsequent strcpy of the full string into the undersized allocation produces a heap buffer overflow. In the current implementation this overflow is bounded by the HTTP receive buffer size (WI_RXBUFSIZE = 153600 bytes, well below SIZE_MAX on 32-bit builds), limiting practical exploitability to a partial heap write. A remote unauthenticated attacker can trigger the theoretical overflow path by sending a maximally-sized URI in an HTTP request to the repeater HTTP port. | ||||
| CVE-2026-7838 | 1 Uvnc | 1 Ultravnc | 2026-07-09 | 8.8 High |
| UltraVNC viewer through 1.8.2.2 contains an integer overflow leading to a heap buffer overflow in the RFB protocol failure-response parsing path. In vncviewer/ClientConnection.cpp, the 4-byte network-supplied reasonLen field (type CARD32) is passed as reasonLen+1 to CheckBufferSize(). Because both operands are unsigned 32-bit, a reasonLen of 0xFFFFFFFF overflows to 0, causing CheckBufferSize to allocate only 256 bytes. The subsequent ReadString(m_netbuf, reasonLen) call then performs ReadExact for the original 4 GiB length into that 256-byte heap buffer. This overflow is reachable via rfbConnFailed (auth-scheme negotiation) and rfbVncAuthFailed (post-handshake) message types without successful authentication. A malicious VNC server, or any man-in-the-middle on the RFB stream, can trigger this condition when the victim viewer connects, potentially resulting in remote code execution as the user running the viewer. The crash was confirmed with AddressSanitizer on a portable reproduction harness (heap-buffer-overflow WRITE at offset 256). | ||||
| CVE-2026-7831 | 1 Uvnc | 1 Ultravnc | 2026-07-09 | 7.5 High |
| UltraVNC viewer through 1.8.2.2 contains an off-by-one stack buffer overflow in the RFB ServerInit message handler. In vncviewer/ClientConnection.cpp, when the server-supplied nameLength equals exactly 2024 the code declares a 2024-byte stack buffer _dn[2024] and calls ReadString(_dn, 2024). ReadString writes the NUL terminator at buf[length], i.e., _dn[2024], one byte past the end of the stack buffer. A malicious VNC server can trigger this condition by advertising a desktop name of length 2024 in its ServerInit message. On release builds without stack canaries the single-byte NUL overwrite adjacent stack data. On builds with /GS stack protection the canary is corrupted and the process terminates, resulting in denial of service. User interaction (connecting the viewer to the malicious server) is required. | ||||
| CVE-2024-23084 | 2 Apfloat, Mikkotommila | 2 Apfloat, Apfloat | 2026-07-09 | 7.5 High |
| Apfloat v1.10.1 was discovered to contain an ArrayIndexOutOfBoundsException via the component org.apfloat.internal.DoubleCRTMath::add(double[], double[]). NOTE: this is disputed by multiple third parties who believe there was not reasonable evidence to determine the existence of a vulnerability. The submission may have been based on a tool that is not sufficiently robust for vulnerability identification. | ||||
| CVE-2026-44808 | 1 Microsoft | 2 Windows 11 26h1, Windows 11 26h1 | 2026-07-08 | 7.8 High |
| Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-44811 | 1 Microsoft | 2 Windows 11 26h1, Windows 11 26h1 | 2026-07-08 | 7.8 High |
| Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-42974 | 1 Microsoft | 11 Windows 11 23h2, Windows 11 23h2, Windows 11 24h2 and 8 more | 2026-07-08 | 8.1 High |
| Integer overflow or wraparound in Windows Performance Monitor allows an unauthorized attacker to execute code over a network. | ||||
| CVE-2026-42914 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-07-08 | 5.3 Medium |
| Out-of-bounds read in Windows Kerberos allows an authorized attacker to deny service over a network. | ||||
| CVE-2026-42916 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-07-08 | 7.8 High |
| Integer overflow or wraparound in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-42837 | 1 Microsoft | 18 Windows 10 1809, Windows 10 21h2, Windows 10 21h2 and 15 more | 2026-07-08 | 7.8 High |
| Out-of-bounds read in Windows Projected File System Filter Driver allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-45653 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-07-08 | 7 High |
| Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally. | ||||
| CVE-2026-45608 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-07-08 | 6.8 Medium |
| Out-of-bounds read in Windows DHCP Client allows an unauthorized attacker to disclose information locally. | ||||
| CVE-2026-45463 | 1 Microsoft | 11 365 Apps, 365 Copilot, Microsoft 365 and 8 more | 2026-07-08 | 8.4 High |
| Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally. | ||||
| CVE-2026-45457 | 1 Microsoft | 7 365 Apps, Microsoft 365, Office 2021 and 4 more | 2026-07-08 | 7.8 High |
| Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally. | ||||
| CVE-2026-45455 | 1 Microsoft | 12 365 Apps, Excel, Excel 2016 and 9 more | 2026-07-08 | 3.3 Low |
| Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally. | ||||
| CVE-2026-48576 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-07-08 | 7.9 High |
| No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally. | ||||
| CVE-2026-48573 | 1 Microsoft | 26 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 23 more | 2026-07-08 | 7.9 High |
| No cwe for this issue in Windows Secure Boot allows an authorized attacker to bypass a security feature locally. | ||||
| CVE-2026-47652 | 1 Microsoft | 11 Windows 11 23h2, Windows 11 23h2, Windows 11 24h2 and 8 more | 2026-07-08 | 8.2 High |
| Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to execute code locally. | ||||
| CVE-2026-47635 | 1 Microsoft | 1 Office 2024 | 2026-07-08 | 8.4 High |
| Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. | ||||
| CVE-2026-45641 | 1 Microsoft | 15 Windows 10 21h2, Windows 10 21h2, Windows 10 22h2 and 12 more | 2026-07-08 | 8.4 High |
| Access of resource using incompatible type ('type confusion') in Windows Hyper-V allows an unauthorized attacker to execute code locally. | ||||