Total
3155 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2026-20840 | 1 Microsoft | 14 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 11 more | 2026-07-30 | N/A | 7.8 HIGH |
| Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally. | |||||
| CVE-2026-20837 | 1 Microsoft | 10 Windows 10 1809, Windows 10 21h2, Windows 10 22h2 and 7 more | 2026-07-30 | N/A | 7.8 HIGH |
| Heap-based buffer overflow in Windows Media allows an unauthorized attacker to execute code locally. | |||||
| CVE-2026-20820 | 1 Microsoft | 14 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 11 more | 2026-07-30 | N/A | 7.8 HIGH |
| Heap-based buffer overflow in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally. | |||||
| CVE-2026-20809 | 1 Microsoft | 13 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 10 more | 2026-07-30 | N/A | 7.8 HIGH |
| Time-of-check time-of-use (toctou) race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally. | |||||
| CVE-2026-67191 | 2026-07-30 | N/A | 9.8 CRITICAL | ||
| Xlight FTP Server before 3.9.5 contains a pre-authentication heap buffer overflow vulnerability that allows remote unauthenticated attackers to write past the end of a heap buffer by sending a malformed SSH client identification string. A logic error in the recv loop's termination condition uses an incorrect OR operator where an AND operator is required, enabling exploitation on any SSH or SFTP connection before authentication occurs. | |||||
| CVE-2026-51218 | 2026-07-30 | N/A | 7.5 HIGH | ||
| A heap buffer overflow in the TS7Worker::PerformFunctionWrite() function (/core/s7_server.cpp) of snap7 v1.4.3 allows attackers to cause a Denial of Service (DoS) via a crafted packet. | |||||
| CVE-2026-53994 | 1 Proftpd | 1 Proftpd | 2026-07-30 | N/A | 7.5 HIGH |
| ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet_read() function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere in the read path to underflow to approximately 4 GB. That oversized request reaches the core memory allocator, where the rounded size is computed in size_t but passed to new_block() as a 32-bit int; the low 32 bits of 0x100000000 are 0, so new_block() returns a small (~512-byte) block while the caller is told it received ~4 GB. The subsequent fill loop then streams attacker-controlled bytes past the end of the 544-byte allocation, producing an attacker-controlled heap buffer overflow. An authenticated user can crash the per-connection ProFTPD session child on demand with a single malformed SFTP packet (packet_len=0 followed by a body greater than approximately 544 bytes), producing reliable authenticated remote denial of service. Depending on heap layout and adjacent allocations, heap metadata corruption and further consequences beyond denial of service may be possible, though only denial of service is demonstrated by the supplied proof of concept. | |||||
| CVE-2026-63090 | 1 Proftpd | 1 Proftpd | 2026-07-30 | N/A | 8.8 HIGH |
| ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module that allows authenticated low-privilege attackers to achieve arbitrary code execution by sending crafted SFTP packet fragments exceeding the 16 KB reassembly buffer in the fxp.c component. Attackers can supply oversized fragments to trigger an incorrectly conditioned reallocation, corrupt pool freelist metadata, overwrite the root_fs BSS global pointer to reference a fake filesystem struct, and redirect pr_fsio_stat() to system() via a crafted RENAME request. | |||||
| CVE-2026-13307 | 2026-07-30 | N/A | 6.8 MEDIUM | ||
| Autel MaxiCharger AC Elite Home USB Heap-based Buffer Overflow Arbitrary Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Autel MaxiCharger AC Elite Home EV chargers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of custom USB packets. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length, heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-29048. | |||||
| CVE-2026-56165 | 1 Microsoft | 1 Account | 2026-07-30 | N/A | 9.8 CRITICAL |
| Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over a network. | |||||
| CVE-2026-66035 | 1 Libssh2 | 1 Libssh2 | 2026-07-30 | N/A | 7.5 HIGH |
| libssh2 through 1.11.1, fixed in commit 42e33d8, contains a pre-authentication heap buffer overflow vulnerability that allows a malicious SSH server to corrupt heap metadata in any connecting client by sending a packet with a packet_length smaller than the cipher's block size during Encrypt-then-MAC cipher negotiation. In the fullpacket() function in src/transport.c, the ETM path allocates a buffer of packet_length bytes but copies blocksize minus one bytes via memcpy, causing an overflow that on 32-bit glibc writes attacker-controlled bytes into an adjacent chunk's SIZE field, enabling tcache bin confusion, overlapping live objects, and function pointer overwrite during the session handshake before authentication. | |||||
| CVE-2026-49035 | 2026-07-30 | N/A | 8.1 HIGH | ||
| The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled. | |||||
| CVE-2026-42980 | 1 Microsoft | 13 Windows 10 1607, Windows 10 1809, Windows 10 21h2 and 10 more | 2026-07-29 | N/A | 7.8 HIGH |
| Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally. | |||||
| CVE-2026-6210 | 2026-07-29 | N/A | N/A | ||
| A type confusion vulnerability in Qt SVG allows an attacker to cause an application crash via a crafted SVG image. When processing SVG marker references, the renderer retrieves a node by its id attribute and casts it to QSvgMarker* without verifying the node type. A non-marker element (such as a <line> element) that references itself as a marker triggers an out-of-bounds heap read due to the object size difference between QSvgLine and QSvgMarker, followed by an endless recursion that bypasses the marker recursion guard through incorrect virtual dispatch. The result is an application crash (denial of service). This issue affects Qt SVG: from 6.7.0 before 6.8.8, from 6.9.0 before 6.11.1. | |||||
| CVE-2025-3512 | 2026-07-29 | N/A | N/A | ||
| There is a Heap-based Buffer Overflow vulnerability in QTextMarkdownImporter. This requires an incorrectly formatted markdown file to be passed to QTextMarkdownImporter to trigger the overflow. This issue affects Qt from 6.8.0 to 6.8.4. Versions up to 6.6.0 are known to be unaffected, and the fix is in 6.8.4 and later. | |||||
| CVE-2026-64830 | 1 Ffmpeg | 1 Ffmpeg | 2026-07-28 | N/A | 8.8 HIGH |
| FFmpeg versions 2.1 through 8.1.2 contains a heap buffer overflow vulnerability in the VobSub subtitle demuxer that allows attackers to corrupt adjacent heap memory by supplying a malicious .sub/.idx subtitle file declaring more distinct stream IDs than the fixed-size array bounds in libavformat/mpeg.c. Attackers can craft a subtitle file with excessive distinct stream IDs to trigger unbounded writes beyond the vobsub->q[] array boundary via ff_subtitles_queue_insert(), potentially achieving arbitrary code execution in any application using FFmpeg's VobSub demuxer. | |||||
| CVE-2026-64620 | 1 Freerdp | 1 Freerdp | 2026-07-28 | N/A | 9.8 CRITICAL |
| FreeRDP before 3.28.0 (affected <=3.27.1) contains a heap-based buffer overflow in crypto_rsa_common() (libfreerdp/crypto/crypto.c). The function writes the modular-exponentiation result into the caller's output buffer via BN_bn2bin() and only afterward checks output_length > out_length, so out-of-bounds bytes are written before the bounds check. On the server side, when a client selects RDP Standard Security, the encrypted client random is decrypted into a fixed 32-byte buffer. Because the server publishes its RSA public key, an unauthenticated attacker can forge a ciphertext whose decrypted value is up to the full modulus length (e.g. 256 bytes for RSA-2048), overflowing the 32-byte heap buffer by up to ~224 attacker-controlled bytes pre-authentication, resulting in denial of service. | |||||
| CVE-2026-55971 | 1 Apache | 1 Thrift | 2026-07-28 | N/A | 9.8 CRITICAL |
| Heap-based Buffer Overflow vulnerability in Apache Thrift C++ bindings. This issue affects Apache Thrift: before 0.24.0. Users are recommended to upgrade to version 0.24.0, which fixes the issue. | |||||
| CVE-2026-44421 | 1 Freerdp | 1 Freerdp | 2026-07-27 | N/A | 8.8 HIGH |
| FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client by sending crafted RDPGFX PDUs. The bug is in gdi_CacheToSurface: it validates a destination rectangle that is clamped to UINT16_MAX, but then performs the copy using the original cacheEntry->width/height. This can cause a large out-of-bounds heap write and may lead to client crashes or code execution. This bug is reachable from a malicious RDP server, but only when the client has RDPGFX enabled. This vulnerability is fixed in 3.26.0. | |||||
| CVE-2026-44420 | 1 Freerdp | 1 Freerdp | 2026-07-27 | N/A | 8.8 HIGH |
| FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, a malicious RDP client can trigger a heap-buffer-overflow write in FreeRDP's server-side clipboard (cliprdr) channel by sending a CB_CLIP_CAPS PDU with a too-small capabilitySetLength. This can crash the server process (remote DoS) and may be exploitable for code execution because it corrupts heap memory. This vulnerability is fixed in 3.26.0. | |||||