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CWE-122

3,113 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 (3,113)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
4365 Apps
Microsoft 365Office 2021+1 more
Jun 19, 2026
Jun 9, 2026
N/A· v4
3.3 LOW· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to disclose information locally.
1Microsoft
7365 Apps
Microsoft 365Office 2016+4 more
Jun 19, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
1Microsoft
7365 Apps
Microsoft 365Office 2016+4 more
Jun 19, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.
1Microsoft
1Windows 11 26h1
Jun 17, 2026
Jun 9, 2026
N/A· v4
5.5 MEDIUM· v3
N/A· v2
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to disclose information locally.
1Microsoft
1Windows 11 26h1
Jul 9, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
1Microsoft
1Windows 11 26h1
Jul 9, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Heap-based buffer overflow in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
1Microsoft
15Remote Desktop Client
Windows 10 1607Windows 10 1809+12 more
Jun 17, 2026
Jun 9, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
1Microsoft
8Windows 10 21h2
Windows 10 22h2Windows 11 23h2+5 more
Jun 17, 2026
Jun 9, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Jun 17, 2026
Jun 9, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Jul 29, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Integer underflow (wrap or wraparound) in Windows NT OS Kernel allows an authorized attacker to elevate privileges locally.
1Microsoft
8Windows 10 21h2
Windows 10 22h2Windows 11 23h2+5 more
Jun 17, 2026
Jun 9, 2026
N/A· v4
9.6 CRITICAL· v3
N/A· v2
Heap-based buffer overflow in Windows TCP/IP allows an unauthorized attacker to elevate privileges over an adjacent network.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Jun 17, 2026
Jun 9, 2026
N/A· v4
7.0 HIGH· v3
N/A· v2
Heap-based buffer overflow in Microsoft Windows DNS allows an authorized attacker to elevate privileges locally.
1Microsoft
13Windows 10 1607
Windows 10 1809Windows 10 21h2+10 more
Jun 17, 2026
Jun 9, 2026
N/A· v4
7.8 HIGH· v3
N/A· v2
Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability
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Jun 17, 2026
Jun 9, 2026
N/A· v4
7.3 HIGH· v3
N/A· v2
NVIDIA DALI contains a vulnerability in a component where an attacker could cause a heap-based buffer overflow. A successful exploit of this vulnerability might lead to code execution, data tampering, denial of service,...Show more
NVIDIA DALI contains a vulnerability in a component where an attacker could cause a heap-based buffer overflow. A successful exploit of this vulnerability might lead to code execution, data tampering, denial of service, and information disclosure.Show less
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Jun 30, 2026
Jun 9, 2026
N/A· v4
3.3 LOW· v3
N/A· v2
A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer...Show more
A heap buffer overflow flaw was found in 389 Directory Server. When audit logging is enabled, the create_masked_entry_string() function in auditlog.c copies a fixed-length password mask into a precisely-sized heap buffer without checking available space. If a short cleartext password is logged (requiring non-default CLEAR password storage or a compromised replication peer), the copy overflows the buffer, corrupting heap memory and audit log output.Show less
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-
Jun 17, 2026
Jun 9, 2026
N/A· v4
5.3 MEDIUM· v3
N/A· v2
Out-of-bounds write vulnerability in the IPC module. Impact: Successful exploitation of this vulnerability may affect availability.
1Apache
1Http Server
Sep 10, 2026
Jun 8, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade...Show more
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted content This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.Show less
1Apache
1Http Server
Jul 23, 2026
Jun 8, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie* This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgra...Show more
Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassReverseCookie* This issue affects Apache HTTP Server: from 2.4.0 through 2.4.67. Users are recommended to upgrade to version 2.4.68, which fixes the issue.Show less
1Apache
1Http Server
Sep 10, 2026
Jun 8, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.
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Jul 23, 2026
Jun 8, 2026
N/A· v4
7.5 HIGH· v3
N/A· v2
Software installed and run as a non-privileged user may conduct improper GPU system calls to corrupt kernel heap memory. By creating resources of certain types and presenting a set of parameters to the affected interf...Show more
Software installed and run as a non-privileged user may conduct improper GPU system calls to corrupt kernel heap memory. By creating resources of certain types and presenting a set of parameters to the affected interface the exploit can be used to corrupt kernel memory.Show less