CVE-2026-56392: Heap-based Buffer Overflow

GNU coreutils unexpand is vulnerable to a heap-based buffer overflow due to an integer overflow during buffer allocation when processing large tab stop -t values. The multiplication used to calculate the allocation size can wrap around, resulting in an undersized buffer. When processing crafted...

PT-2026-67247

Name of the Vulnerable Software and Affected Versions FluidSynth affected versions not specified Description A heap-based buffer overflow exists in the MIDI player. When the synthesizer is configured with the synth.midi-channels variable set to a value greater than 16, an out-of-bounds memory...

CVE-2026-66040: Heap-based Buffer Overflow

FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted PNG image with a malicious eXIf chunk. Attackers can craft an eXIf chunk where multiple I...

CVE-2026-66035: Heap-based Buffer Overflow

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 packetlength smaller than the cipher's block size during Encrypt-then-M...

CVE-2026-66036: Heap-based Buffer Overflow

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains a heap out-of-bounds write vulnerability in the vfhqdn3d filter that allows attackers to corrupt heap memory by supplying a crafted video whose frame resolution increases between frames when filtergraph reinitialization is disabled via the...

CVE-2026-56165: Heap-based Buffer Overflow

Heap-based buffer overflow in Microsoft Account allows an unauthorized attacker to execute code over a network...

CVE-2026-49035: Heap-based Buffer Overflow

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...

libarchive: libarchive: Denial of Service via heap-based buffer overflow in gzip writer

A flaw was found in libarchive, a data archiving library. This vulnerability, a heap-based buffer overflow in the gzip writer, occurs when handling the original-filename field. While exploitation requires a specific, marginally plausible scenario where an untrusted source provides the filename, a...

CVE-2026-53910: Integer Overflow or Wraparound

diff3 tool from GNU diffutils is vulnerable to a heap‑based buffer overflow due to multiple signed integer overflows in line‑mapping calculations. Incorrect arithmetic in mapping line ranges can result in corrupted values being used for memory allocation and loop bounds. When processing crafted...

CVE-2026-13072: Heap-based Buffer Overflow

When compute mode is enabled on a standalone mongod instance, insufficient validation of externally sourced BSON data during aggregation pipeline processing can result in memory corruption, potentially leading to process termination or other unintended behavior. This configuration is non-default...

CVE-2026-64830: Heap-based Buffer Overflow

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...

CVE-2026-40691: Heap-based Buffer Overflow

In Unbound 1.9.0 up to and including 1.25.1, when a DNSCrypt query is received over TCP, the routine that encrypts the reply in place fails to bound the reply length against the destination buffer size. The size clamp that protects the UDP path is not applied on the TCP path, so a reply larger th...

CVE-2026-8987: Heap-based Buffer Overflow

Autel Maxi Charger Single firmware through V1.03.51 contains a heap-based buffer overflow in the setapparam command handled by the /localcfg endpoint. An authenticated attacker can supply oversized input, resulting in denial of service and potentially arbitrary code execution...

CVE-2026-41252: Heap-based Buffer Overflow

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a missing bounds check in xrdp, which allows a heap-based buffer overflow when operating in vnc-any mode. The issue occurs during the handling of RFB protocol color map messages from a VNC server, where incoming color indices ar...

CVE-2026-33327: Integer Overflow or Wraparound

libvips is a fast image processing library with low memory needs. The vipsload operation in versions before and including 8.18.0 could incorrectly determine image dimensions leading to an integer overflow and a subsequent heap-based buffer overflow. This has been patched in version 8.18.1...

CVE-2026-35590: Heap-based Buffer Overflow

libvips is a fast image processing library with low memory needs. The EXIF decoder within libvips versions before and including 8.18.1 was not verifying the range of EXIF tag groups before passing data to libexif, leading to a possible null pointer dereference and crash. This has been patched in...

CVE-2026-35591: Heap-based Buffer Overflow

libvips is a fast image processing library with low memory needs. The tiffload operation in libvips versions before and including 8.18.1 could incorrectly determine the number of channels in a JPEG or JPEG2000-encoded tile within a TIFF image, leading to a possible buffer overflow. This has been...

CVE-2026-63090: Heap-based Buffer Overflow

ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the modsftp 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...

CVE-2026-64620: Heap-based Buffer Overflow

FreeRDP before 3.28.0 affected outlength, 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...

CVE-2026-44178: Heap-based Buffer Overflow

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a heap-based buffer overflow vulnerability within the virtual channel forwarding mechanism. When forwarding data from a remote client to the internal channel server, the xrdp process utilizes a fixed-size buffer without adequate...