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CWE-122

3,698 CVEs • Abstraction: Variant • Likelihood of Exploit: High

Heap-based Buffer Overflow

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().

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CVEs (3,698)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
4Apple
DebianNeovim+1 more
4Debian Linux
MacosNeovim+1 more
Sep 18, 2026
Sep 2, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.1848.
1Gpac
1Gpac
Jun 17, 2026
Aug 31, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Heap-based Buffer Overflow in GitHub repository gpac/gpac prior to 2.3-DEV.
1Notepad Plus Plus
1Notepad++
Jun 17, 2026
Aug 25, 2023
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer read overflow in `FileManager::detectLanguageFromTextBegining `. The exploitability of this issue is not clea...Show more
Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer read overflow in `FileManager::detectLanguageFromTextBegining `. The exploitability of this issue is not clear. Potentially, it may be used to leak internal memory allocation information. As of time of publication, no known patches are available in existing versions of Notepad++.Show less
1Notepad Plus Plus
1Notepad++
Jun 17, 2026
Aug 25, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer write overflow in `Utf8_16_Read::convert`. This issue may lead to arbitrary code execution. As of time of pub...Show more
Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer write overflow in `Utf8_16_Read::convert`. This issue may lead to arbitrary code execution. As of time of publication, no known patches are available in existing versions of Notepad++.Show less
2Fedoraproject
Radare
2Fedora
Radare2
Jun 17, 2026
Aug 14, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
Heap-based Buffer Overflow in GitHub repository radareorg/radare2 prior to 5.9.0.
2Debian
Eprosima
2Debian Linux
Fast Dds
Jun 17, 2026
Aug 11, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6, even after the fix at commit 3492270, malformed `PID...Show more
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6, even after the fix at commit 3492270, malformed `PID_PROPERTY_LIST` parameters cause heap overflow at a different program counter. This can remotely crash any Fast-DDS process. Versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6 contain a patch for this issue.Show less
2Debian
Eprosima
2Debian Linux
Fast Dds
Jun 17, 2026
Aug 11, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6, heap can be overflowed by providing a PID_PROPERTY_L...Show more
eprosima Fast DDS is a C++ implementation of the Data Distribution Service standard of the Object Management Group. Prior to versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6, heap can be overflowed by providing a PID_PROPERTY_LIST parameter that contains a CDR string with length larger than the size of actual content. In `eprosima::fastdds::dds::ParameterPropertyList_t::push_back_helper`, `memcpy` is called to first copy the octet'ized length and then to copy the data into `properties_.data`. At the second memcpy, both `data` and `size` can be controlled by anyone that sends the CDR string to the discovery multicast port. This can remotely crash any Fast-DDS process. Versions 2.11.1, 2.10.2, 2.9.2, and 2.6.6 contain a patch for this issue.Show less
1Adobe
1Dimension
Jun 17, 2026
Aug 9, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Adobe Dimension version 3.4.9 is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interacti...Show more
Adobe Dimension version 3.4.9 is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.Show less
1Cesanta
1Mongoose
Jun 17, 2026
Aug 9, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Due to a failure in validating the length of a provided MQTT_CMD_PUBLISH parsed message with a variable length header, Cesanta Mongoose, an embeddable web server, version 7.10 is susceptible to a heap-based buffer overfl...Show more
Due to a failure in validating the length of a provided MQTT_CMD_PUBLISH parsed message with a variable length header, Cesanta Mongoose, an embeddable web server, version 7.10 is susceptible to a heap-based buffer overflow vulnerability in the default configuration. Version 7.9 and prior does not appear to be vulnerable. This issue is resolved in version 7.11. Show less
1Microsoft
1Hevc Video Extensions
Aug 10, 2026
Aug 8, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
HEVC Video Extensions Remote Code Execution Vulnerability
1Microsoft
2Windows 10 1809
Windows Server 2019
Jun 17, 2026
Aug 8, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Windows Kernel Elevation of Privilege Vulnerability
1Microsoft
4365 Apps
OfficeOffice Long Term Servicing Channel+1 more
Aug 10, 2026
Aug 8, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Microsoft Excel Remote Code Execution Vulnerability
1Microsoft
3365 Apps
OfficeOffice Long Term Servicing Channel
Aug 10, 2026
Aug 8, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Microsoft Office Visio Remote Code Execution Vulnerability
1Zoom
3Rooms
Virtual Desktop InfrastructureZoom
Jun 17, 2026
Aug 8, 2023
N/A· v4
7.5 HIGH· v3
N/A· v2
Buffer overflow in Zoom Clients before 5.14.5 may allow an unauthenticated user to enable a denial of service via network access.
3Debian
FedoraprojectQemu
3Debian Linux
FedoraQemu
Jun 17, 2026
Aug 3, 2023
N/A· v4
6.5 MEDIUM· v3
N/A· v2
A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_he...Show more
A flaw was found in the QEMU virtual crypto device while handling data encryption/decryption requests in virtio_crypto_handle_sym_req. There is no check for the value of `src_len` and `dst_len` in virtio_crypto_sym_op_helper, potentially leading to a heap buffer overflow when the two values differ.Show less
2Fedoraproject
Procps Project
2Fedora
Procps
Oct 14, 2026
Aug 2, 2023
N/A· v4
3.3 LOW· v3
N/A· v2
Under some circumstances, this weakness allows a user who has access to run the “ps” utility on a machine, the ability to write almost unlimited amounts of unfiltered data into the process heap.
1Axis
1A1001 Firmware
Jun 17, 2026
Jul 25, 2023
N/A· v4
8.8 HIGH· v3
N/A· v2
Ariel Harush and Roy Hodir from OTORIO have found a flaw in the AXIS A1001 when communicating over OSDP. A heap-based buffer overflow was found in the pacsiod process which is handling the OSDP communication allowing to...Show more
Ariel Harush and Roy Hodir from OTORIO have found a flaw in the AXIS A1001 when communicating over OSDP. A heap-based buffer overflow was found in the pacsiod process which is handling the OSDP communication allowing to write outside of the allocated buffer. By appending invalid data to an OSDP message it was possible to write data beyond the heap allocated buffer. The data written outside the buffer could be used to execute arbitrary code.  lease refer to the Axis security advisory for more information, mitigation and affected products and software versions.Show less
1Openbabel
1Open Babel
Jun 17, 2026
Jul 21, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Multiple out-of-bounds write vulnerabilities exist in the ORCA format nAtoms functionality of Open Babel 3.1.1 and master commit 530dbfa3. A specially-crafted malformed file can lead to arbitrary code execution. An attac...Show more
Multiple out-of-bounds write vulnerabilities exist in the ORCA format nAtoms functionality of Open Babel 3.1.1 and master commit 530dbfa3. A specially-crafted malformed file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.The loop that stores the coordinates does not check its index against nAtomsShow less
1Openbabel
1Open Babel
Jun 17, 2026
Jul 21, 2023
N/A· v4
7.8 HIGH· v3
N/A· v2
Multiple out-of-bounds write vulnerabilities exist in the ORCA format nAtoms functionality of Open Babel 3.1.1 and master commit 530dbfa3. A specially-crafted malformed file can lead to arbitrary code execution. An attac...Show more
Multiple out-of-bounds write vulnerabilities exist in the ORCA format nAtoms functionality of Open Babel 3.1.1 and master commit 530dbfa3. A specially-crafted malformed file can lead to arbitrary code execution. An attacker can provide a malicious file to trigger this vulnerability.nAtoms calculation wrap-around, leading to a small buffer allocationShow less
1Ge
1Cimplicity
Jun 17, 2026
Jul 19, 2023
N/A· v4
9.8 CRITICAL· v3
N/A· v2
All versions of GE Digital CIMPLICITY that are not adhering to SDG guidance and accepting documents from untrusted sources are vulnerable to memory corruption issues due to insufficient input validation, including issue...Show more
All versions of GE Digital CIMPLICITY that are not adhering to SDG guidance and accepting documents from untrusted sources are vulnerable to memory corruption issues due to insufficient input validation, including issues such as out-of-bounds reads and writes, use-after-free, stack-based buffer overflows, uninitialized pointers, and a heap-based buffer overflow. Successful exploitation could allow an attacker to execute arbitrary code. Show less