Heap-based Buffer Overflow
CWE-122
The product writes past the end of a buffer that was allocated on the heap.
We track 1,418 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.3. 21 have been exploited in real attacks.
How this weakness is prevented
- Pre-design: Use a language or compiler that performs automatic bounds checking.
- Architecture and Design: Use an abstraction library to abstract away risky APIs. Not a complete solution.
- Operation Build and Compilation: Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND discusses canary-based detection in detail.
- Implementation: Implement and perform bounds checking on input.
- Implementation: Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
Latest Heap-based Buffer Overflow vulnerabilities
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
An out-of-bounds write flaw was found in grub2's NTFS filesystem driver. This issue may allow an attacker to present a specially crafted NTFS filesystem image, leading to grub's heap metadata corruption. In some circumstances, the attack may also corrupt the U
- 8.1 High severity
SoftEther VPN: Out-of-bounds Write
A heap-based buffer overflow vulnerability exists in the vpnserver WpcParsePacket() functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to arbitrary code execution. An attacker can perform a man-in-the
- 7.8 High severity
Red Hat Enterprise Linux 8: Integer Overflow or Wraparound
A vulnerability was found in libX11 due to an integer overflow within the XCreateImage() function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges.
- 7.8 High severity
GNU C Library Buffer Overflow Exploited
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 binari
- 7.0 High severity
CUPS: Out-of-bounds Write
Due to failure in validating the length provided by an attacker-crafted PPD PostScript document, CUPS and libppd are susceptible to a heap-based buffer overflow and possibly code execution. This issue has been fixed in CUPS version 2.4.7, released in September
- 7.8 High severity
glib: Out-of-bounds Write
A flaw was found in GLib. The GVariant deserialization code is vulnerable to a heap buffer overflow introduced by the fix for CVE-2023-32665. This bug does not affect any released version of GLib, but does affect GLib distributors who followed the guidance of
- 7.8 High severity
JT2Go: Out-of-bounds Write
A vulnerability has been identified in JT2Go (All versions < V14.3.0.1), Teamcenter Visualization V13.3 (All versions < V13.3.0.12), Teamcenter Visualization V14.0 (All versions), Teamcenter Visualization V14.1 (All versions < V14.1.0.11), Teamcenter Visualiza
- 7.8 High severity
JT2Go: Out-of-bounds Write
A vulnerability has been identified in JT2Go (All versions < V14.3.0.1), Teamcenter Visualization V13.3 (All versions < V13.3.0.12), Teamcenter Visualization V14.0 (All versions), Teamcenter Visualization V14.1 (All versions < V14.1.0.11), Teamcenter Visualiza
- 7.8 High severity
notepad-plus-plus: Buffer Copy without Checking Size of Input
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
- 7.5 High severity
Fast-DDS: Out-of-bounds Write
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 ov
- 7.5 High severity
Fast-DDS: Out-of-bounds Write
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
- 7.8 High severity
Dimension: Heap-based Buffer Overflow
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 maliciou
- 8.8 High severity
Mongoose: Out-of-bounds Write
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 configur
- 8.8 High severity
AXIS A1001 Network Door Controller: Out-of-bounds Write
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. B
- 7.8 High severity
Open Babel: Out-of-bounds Write
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 trig
- 7.8 High severity
Open Babel: Out-of-bounds Write
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 trig
- 9.8 Critical severity
CIMPLICITY: Out-of-bounds Write
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,
- 8.8 High severity
redis: Heap-based Buffer Overflow
Redis is an in-memory database that persists on disk. A specially crafted Lua script executing in Redis can trigger a heap overflow in the cjson library, and result with heap corruption and potentially remote code execution. The problem exists in all versions
- 7.8 High severity
SOLIDWORKS Desktop: Use After Free
Use-After-Free, Out-of-bounds Write and Heap-based Buffer Overflow vulnerabilities exist in the DWG and DXF file reading procedure in SOLIDWORKS Desktop from Release SOLIDWORKS 2021 through Release SOLIDWORKS 2023. These vulnerabilities could allow an attacker
- 8.8 High severity
redis: Out-of-bounds Write
Redis is an in-memory database that persists on disk. In Redit 7.0 prior to 7.0.12, extracting key names from a command and a list of arguments may, in some cases, trigger a heap overflow and result in reading random heap memory, heap corruption and potentiall
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0008), Tecnomatix Plant Simulation V2302 (All versions < V2302.0002). The affected application is vulnerable to heap-based buffer overflow while parsing specially cr
- 7.8 High severity
Tecnomatix Plant Simulation V2201: Out-of-bounds Write
A vulnerability has been identified in Tecnomatix Plant Simulation V2201 (All versions < V2201.0008), Tecnomatix Plant Simulation V2302 (All versions < V2302.0002). The affected application is vulnerable to heap-based buffer overflow while parsing specially cr
- 7.8 High severity
sox: Out-of-bounds Write
A heap buffer overflow vulnerability was found in sox, in the lsx_readbuf function at sox/src/formats_i.c:98:16. This flaw can lead to a denial of service, code execution, or information disclosure.
- 7.8 High severity
sox: Out-of-bounds Write
A heap buffer overflow vulnerability was found in sox, in the startread function at sox/src/hcom.c:160:41. This flaw can lead to a denial of service, code execution, or information disclosure.
- 9.8 Critical severity
HarmonyOS: Use After Free
Use After Free (UAF) vulnerability in the Vdecoderservice service. Successful exploitation of this vulnerability may cause the image decoding feature to perform abnormally.
- 7.8 High severity
Diagon: Out-of-bounds Write
A heap-based buffer overflow vulnerability exists in the Sequence::DrawText functionality of Diagon v1.0.139. A specially crafted markdown file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger this vulnerability.
- 9.8 Critical severity
Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Exploited
A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, ver
- 7.8 High severity
CNCSoft-B DOPSoft: Out-of-bounds Write
Delta Electronics' CNCSoft-B DOPSoft versions 1.0.0.4 and prior are vulnerable to heap-based buffer overflow, which could allow an attacker to execute arbitrary code.
- 7.5 High severity
sofia-sip: Integer Overflow or Wraparound
Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. Referring to [GHSA-8599-x7rq-fr54](https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-8599-x7rq-fr54), several other potential heap-over-flow and i
- 7.8 High severity
Substance3D - Painter: Out-of-bounds Write
Adobe Substance 3D Painter versions 8.3.0 (and earlier) 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 v
- 9.8 Critical severity
Canon Office/Small Office Multifunction…: Out-of-bounds Write
Buffer overflow in NetBIOS QNAME registering and communication process of Office / Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arb
- 9.8 Critical severity
Canon Office/Small Office Multifunction…: Out-of-bounds Write
Buffer overflow in CPCA Resource Download process of Office / Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the network segment to trigger the affected product being unresponsive or to execute arbitrary code. *:Satera
- 7.8 High severity
PoDoFo: Out-of-bounds Write
A vulnerability, which was classified as critical, was found in PoDoFo 0.10.0. Affected is the function readXRefStreamEntry of the file PdfXRefStreamParserObject.cpp. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally.
- 7.8 High severity
Autodesk FBX SDK: Out-of-bounds Write
A user may be tricked into opening a malicious FBX file that may exploit a heap buffer overflow vulnerability in Autodesk® FBX® SDK 2020 or prior which may lead to code execution.
- 7.8 High severity
Substance3D - Designer: Out-of-bounds Write
Adobe Substance 3D Designer version 12.4.0 (and earlier) 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
- 7.8 High severity
Substance3D - Designer: Out-of-bounds Write
Adobe Substance 3D Designer version 12.4.0 (and earlier) 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
- 7.8 High severity
Substance3D - Stager: Out-of-bounds Write
Adobe Substance 3D Stager version 2.0.1 (and earlier) 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 vic
- 7.8 High severity
Microsoft Windows Common Log File System (CLFS) Driver Privilege Escalation Exploited
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- 7.8 High severity
Ichitaro: Heap-based Buffer Overflow
A heap-based buffer overflow vulnerability exists in the way Ichitaro version 2022 1.0.1.57600 processes certain LayoutBox stream record types. A specially crafted document can cause a buffer overflow, leading to memory corruption, which can result in arbitrar
- 7.8 High severity
Ichitaro: Heap-based Buffer Overflow
A buffer overflow vulnerability exists in the Attribute Arena functionality of Ichitaro 2022 1.0.1.57600. A specially crafted document can lead to memory corruption. An attacker can provide a malicious file to trigger this vulnerability.