CWE-122
Heap-based Buffer Overflow
VariantDraftLikelihood: High
Description
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
Hierarchy (View 1000)
Related attack patterns (CAPEC)
CAPEC-92
CVEs mapped to this weakness (341)
page 16 of 18| CVE | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2026-5869 | Med | 0.28 | 4.3 | 0.00 | Apr 8, 2026 | Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High) | |
| CVE-2026-5867 | Med | 0.28 | 4.3 | 0.00 | Apr 8, 2026 | Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High) | |
| CVE-2026-5864 | Med | 0.28 | 4.3 | 0.00 | Apr 8, 2026 | Heap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High) | |
| CVE-2025-49604 | Med | 0.28 | 5.4 | 0.00 | Jul 9, 2025 | For Realtek AmebaD devices, a heap-based buffer overflow was discovered in Ameba-AIoT ameba-arduino-d before version 3.1.9 and ameba-rtos-d before commit c2bfd8216a1cbc19ad2ab5f48f372ecea756d67a on 2025/07/03. In the WLAN driver defragment function, lack of validation of the size of fragmented Wi-Fi frames may lead to a heap-based buffer overflow. | |
| CVE-2024-48075 | Med | 0.28 | 5.3 | 0.01 | Nov 12, 2024 | A Heap buffer overflow in the server-site handshake implementation in Real Time Logic SharkSSL from 09/09/24 and earlier allows a remote attacker to trigger a Denial-of-Service via a malformed TLS Client Key Exchange message. | |
| CVE-2026-34743 | Med | 0.27 | 5.3 | 0.00 | Apr 2, 2026 | XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3. | |
| CVE-2026-3281 | Med | 0.27 | 5.3 | 0.00 | Feb 27, 2026 | A vulnerability was detected in libvips 8.19.0. This affects the function vips_bandrank_build of the file libvips/conversion/bandrank.c. Performing a manipulation of the argument index results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit is now public and may be used. The patch is named fd28c5463697712cb0ab116a2c55e4f4d92c4088. It is suggested to install a patch to address this issue. | |
| CVE-2026-3147 | Med | 0.27 | 5.3 | 0.00 | Feb 25, 2026 | A vulnerability was found in libvips up to 8.18.0. This affects the function vips_foreign_load_csv_build of the file libvips/foreign/csvload.c. The manipulation results in heap-based buffer overflow. The attack requires a local approach. The exploit has been made public and could be used. The patch is identified as b3ab458a25e0e261cbd1788474bbc763f7435780. It is advisable to implement a patch to correct this issue. | |
| CVE-2025-15536 | Med | 0.27 | 5.3 | 0.00 | Jan 18, 2026 | A weakness has been identified in BYVoid OpenCC up to 1.1.9. This vulnerability affects the function opencc::MaxMatchSegmentation of the file src/MaxMatchSegmentation.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been made available to the public and could be used for attacks. Patch name: 345c9a50ab07018f1b4439776bad78a0d40778ec. To fix this issue, it is recommended to deploy a patch. | |
| CVE-2025-15533 | Med | 0.27 | 5.3 | 0.00 | Jan 18, 2026 | A vulnerability was determined in raysan5 raylib up to 909f040. Affected by this vulnerability is the function GenImageFontAtlas of the file src/rtext.c. Executing a manipulation can lead to heap-based buffer overflow. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. This patch is called 5a3391fdce046bc5473e52afbd835dd2dc127146. Applying a patch is advised to resolve this issue. | |
| CVE-2025-14958 | Med | 0.27 | 5.3 | 0.00 | Dec 19, 2025 | A security flaw has been discovered in floooh sokol up to 33e2271c431bf21de001e972f72da17a984da932. This vulnerability affects the function _sg_pipeline_common_init in the library sokol_gfx.h. Performing manipulation results in heap-based buffer overflow. The attack needs to be approached locally. The exploit has been released to the public and may be exploited. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The patch is named 33e2271c431bf21de001e972f72da17a984da932. It is suggested to install a patch to address this issue. | |
| CVE-2025-14956 | Med | 0.27 | 5.3 | 0.00 | Dec 19, 2025 | A vulnerability was determined in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue. | |
| CVE-2025-3548 | Med | 0.27 | 5.3 | 0.00 | Apr 14, 2025 | A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp up to 5.4.3. This issue affects the function aiString::Set in the library include/assimp/types.h of the component File Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. | |
| CVE-2025-22920 | Med | 0.27 | 5.3 | 0.00 | Feb 18, 2025 | A heap buffer overflow vulnerability in FFmpeg before commit 4bf784c allows attackers to trigger a memory corruption via supplying a crafted media file in avformat when processing tile grid group streams. This can lead to a Denial of Service (DoS). | |
| CVE-2024-46993 | Med | 0.22 | — | 0.00 | Jul 1, 2025 | Electron is an open source framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. In versions prior to 28.3.2, 29.3.3, and 30.0.3, the nativeImage.createFromPath() and nativeImage.createFromBuffer() functions call a function downstream that is vulnerable to a heap buffer overflow. An Electron program that uses either of the affected functions is vulnerable to a buffer overflow if an attacker is in control of the image's height, width, and contents. This issue has been patched in versions 28.3.2, 29.3.3, and 30.0.3. There are no workarounds for this issue. | |
| CVE-2024-43802 | Med | 0.22 | 4.5 | 0.00 | Aug 26, 2024 | Vim is an improved version of the unix vi text editor. When flushing the typeahead buffer, Vim moves the current position in the typeahead buffer but does not check whether there is enough space left in the buffer to handle the next characters. So this may lead to the tb_off position within the typebuf variable to point outside of the valid buffer size, which can then later lead to a heap-buffer overflow in e.g. ins_typebuf(). Therefore, when flushing the typeahead buffer, check if there is enough space left before advancing the off position. If not, fall back to flush current typebuf contents. It's not quite clear yet, what can lead to this situation. It seems to happen when error messages occur (which will cause Vim to flush the typeahead buffer) in comnination with several long mappgins and so it may eventually move the off position out of a valid buffer size. Impact is low since it is not easily reproducible and requires to have several mappings active and run into some error condition. But when this happens, this will cause a crash. The issue has been fixed as of Vim patch v9.1.0697. Users are advised to upgrade. There are no known workarounds for this issue. | |
| CVE-2026-3463 | Low | 0.21 | 3.3 | 0.00 | Mar 3, 2026 | A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::binary_writer::append of the file source/detail/binary.hpp of the component Compound Document Parser. This manipulation causes heap-based buffer overflow. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. Patch name: 147. It is suggested to install a patch to address this issue. | |
| CVE-2026-3407 | Low | 0.21 | 3.3 | 0.00 | Mar 2, 2026 | A vulnerability was determined in YosysHQ yosys up to 0.62. This affects the function Yosys::RTLIL::Const::set of the file kernel/rtlil.h of the component BLIF File Parser. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Applying a patch is the recommended action to fix this issue. It appears that the issue is not reproducible all the time. | |
| CVE-2026-3393 | Low | 0.21 | 3.3 | 0.00 | Mar 1, 2026 | A security vulnerability has been detected in jarikomppa soloud up to 20200207. The impacted element is the function SoLoud::Wav::loadflac of the file src/audiosource/wav/soloud_wav.cpp of the component Audio File Handler. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet. | |
| CVE-2026-2661 | Low | 0.21 | 3.3 | 0.00 | Feb 18, 2026 | A security flaw has been discovered in Squirrel up to 3.2. This affects the function SQObjectPtr::operator in the library squirrel/sqobject.h. The manipulation results in heap-based buffer overflow. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet. |