CWE-122
Heap-based Buffer Overflow
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 (2,687)
page 2 of 135| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-24822 | Cri | 0.65 | — | 0.00 | Jan 27, 2026 | Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in ttttupup wxhelper (src modules). This vulnerability is associated with program files mongoose.C. This issue affects wxhelper: through 3.9.10.19-v1. | ||
| CVE-2025-47981 | Cri | 0.65 | 9.8 | 0.25 | Jul 8, 2025 | Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network. | ||
| CVE-2025-23123 | Cri | 0.65 | 10.0 | 0.01 | May 19, 2025 | A malicious actor with access to the management network could execute a remote code execution (RCE) by exploiting a heap buffer overflow vulnerability in the UniFi Protect Cameras (Version 4.75.43 and earlier) firmware. | ||
| CVE-2024-37080 | Cri | 0.65 | 9.8 | 0.12 | Jun 18, 2024 | vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potentially leading to remote code execution. | ||
| CVE-2023-45318 | Cri | 0.65 | 10.0 | 0.02 | Feb 20, 2024 | A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP git commit 80d4004. A specially crafted network packet can lead to arbitrary code execution. An attacker can send a malicious packet to trigger this vulnerability. | ||
| CVE-2023-4911 | Hig | 0.65 | 7.8 | 0.81 | KEV | Oct 3, 2023 | A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID… | |
| CVE-2023-21692 | Cri | 0.65 | 9.8 | 0.21 | Feb 14, 2023 | Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability | ||
| CVE-2022-34819 | Cri | 0.65 | 10.0 | 0.02 | Jul 12, 2022 | A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46),… | ||
| CVE-2021-21940 | Cri | 0.65 | 10.0 | 0.01 | Oct 12, 2021 | A heap-based buffer overflow vulnerability exists in the pushMuxer processRtspInfo functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted network packet can lead to a heap buffer overflow. An attacker can send a malicious packet to trigger this vulnerability. | ||
| CVE-2021-34770 | Cri | 0.65 | 10.0 | 0.03 | Sep 23, 2021 | A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to execute arbitrary code with administrative… | ||
| CVE-2019-14901 | Cri | 0.65 | 9.8 | 0.17 | Nov 29, 2019 | A heap overflow flaw was found in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The vulnerability allows a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with… | ||
| CVE-2019-18240 | Cri | 0.65 | 9.8 | 0.14 | Nov 13, 2019 | In Fuji Electric V-Server 4.0.6 and prior, several heap-based buffer overflows have been identified, which may allow an attacker to remotely execute arbitrary code. | ||
| CVE-2019-15679 | Cri | 0.65 | 9.8 | 0.12 | Oct 29, 2019 | TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result code execution. This attack appear to be exploitable via network connectivity. | ||
| CVE-2019-15678 | Cri | 0.65 | 9.8 | 0.12 | Oct 29, 2019 | TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially result code execution.. This attack appear to be exploitable via network connectivity. | ||
| CVE-2019-5482 | Cri | 0.65 | 9.8 | 0.18 | Sep 16, 2019 | Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3. | ||
| CVE-2026-65791 | Cri | 0.64 | 9.8 | 0.01 | Aug 11, 2026 | Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-67873 | Cri | 0.64 | 9.8 | 0.00 | Aug 6, 2026 | A heap-based buffer overflow exists in lib60870-C 2.4.0 in the server-side FileSegment ASDU encoding path. The issue occurs because FileSegment_encode() validates only the standalone segment length via FileSegment_GetMaxDataSize() and does not verify the residual capacity of the… | ||
| CVE-2026-47291 | Cri | 0.64 | 9.8 | 0.23 | Jun 9, 2026 | Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-45657 | Cri | 0.64 | 9.8 | 0.15 | Jun 9, 2026 | Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network. | ||
| CVE-2026-8175 | Cri | 0.64 | 9.8 | 0.01 | May 27, 2026 | IBM Aspera High-Speed Transfer Endpoint 3.7.4 through 4.4.7 Fix Pack 1 and IBM Aspera High-Speed Transfer Server 3.7.4 through 4.4.7 Fix Pack 1 and IBM Aspera High-Speed Transfer Endpoint are affected by a buffer overflow in the asperahttpd component. This vulnerability could be… |
- risk 0.65cvss —epss 0.00
Out-of-bounds Write, Heap-based Buffer Overflow vulnerability in ttttupup wxhelper (src modules). This vulnerability is associated with program files mongoose.C. This issue affects wxhelper: through 3.9.10.19-v1.
- risk 0.65cvss 9.8epss 0.25
Heap-based buffer overflow in Windows SPNEGO Extended Negotiation allows an unauthorized attacker to execute code over a network.
- risk 0.65cvss 10.0epss 0.01
A malicious actor with access to the management network could execute a remote code execution (RCE) by exploiting a heap buffer overflow vulnerability in the UniFi Protect Cameras (Version 4.75.43 and earlier) firmware.
- risk 0.65cvss 9.8epss 0.12
vCenter Server contains a heap-overflow vulnerability in the implementation of the DCERPC protocol. A malicious actor with network access to vCenter Server may trigger this vulnerability by sending a specially crafted network packet potentially leading to remote code execution.
- risk 0.65cvss 10.0epss 0.02
A heap-based buffer overflow vulnerability exists in the HTTP Server functionality of Weston Embedded uC-HTTP git commit 80d4004. A specially crafted network packet can lead to arbitrary code execution. An attacker can send a malicious packet to trigger this vulnerability.
- risk 0.65cvss 7.8epss 0.81
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binaries with SUID…
- risk 0.65cvss 9.8epss 0.21
Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability
- risk 0.65cvss 10.0epss 0.02
A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46),…
- risk 0.65cvss 10.0epss 0.01
A heap-based buffer overflow vulnerability exists in the pushMuxer processRtspInfo functionality of Anker Eufy Homebase 2 2.1.6.9h. A specially-crafted network packet can lead to a heap buffer overflow. An attacker can send a malicious packet to trigger this vulnerability.
- risk 0.65cvss 10.0epss 0.03
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, remote attacker to execute arbitrary code with administrative…
- risk 0.65cvss 9.8epss 0.17
A heap overflow flaw was found in the Linux kernel, all versions 3.x.x and 4.x.x before 4.18.0, in Marvell WiFi chip driver. The vulnerability allows a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code. The highest threat with…
- risk 0.65cvss 9.8epss 0.14
In Fuji Electric V-Server 4.0.6 and prior, several heap-based buffer overflows have been identified, which may allow an attacker to remotely execute arbitrary code.
- risk 0.65cvss 9.8epss 0.12
TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result code execution. This attack appear to be exploitable via network connectivity.
- risk 0.65cvss 9.8epss 0.12
TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially result code execution.. This attack appear to be exploitable via network connectivity.
- risk 0.65cvss 9.8epss 0.18
Heap buffer overflow in the TFTP protocol handler in cURL 7.19.4 to 7.65.3.
- risk 0.64cvss 9.8epss 0.01
Heap-based buffer overflow in Windows iSCSI Target Service allows an unauthorized attacker to execute code over a network.
- risk 0.64cvss 9.8epss 0.00
A heap-based buffer overflow exists in lib60870-C 2.4.0 in the server-side FileSegment ASDU encoding path. The issue occurs because FileSegment_encode() validates only the standalone segment length via FileSegment_GetMaxDataSize() and does not verify the residual capacity of the…
- risk 0.64cvss 9.8epss 0.23
Integer overflow or wraparound in Windows HTTP.sys allows an unauthorized attacker to execute code over a network.
- risk 0.64cvss 9.8epss 0.15
Use after free in Windows Kernel allows an unauthorized attacker to execute code over a network.
- risk 0.64cvss 9.8epss 0.01
IBM Aspera High-Speed Transfer Endpoint 3.7.4 through 4.4.7 Fix Pack 1 and IBM Aspera High-Speed Transfer Server 3.7.4 through 4.4.7 Fix Pack 1 and IBM Aspera High-Speed Transfer Endpoint are affected by a buffer overflow in the asperahttpd component. This vulnerability could be…