Weakness (CWE)
CWE-787: Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
How to prevent it (7 mitigations)
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Requirements
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
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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 [REF-1334] discusses canary-based detection in detail.
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Implementation
Consider adhering to the following rules when allocating and managing an application's memory:
- Double check that the buffer is as large as specified.
- When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
- Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
- If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
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Operation, Build and Compilation
Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
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Operation
Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
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Implementation
Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
Source: MITRE CWE-787
3,640 results · Clear filters · Feed
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High 7.8
PDF-XChange Editor PRC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
PDF-XChange Editor PRC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vul…
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High 7.8
PDF-XChange Editor PRC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
PDF-XChange Editor PRC File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is required to exploit this vul…
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High 7.8
Fuji Electric Smart Editor Out-of-bounds Write
Fuji Electric Smart Editor is vulnerable to an out-of-bounds write, which may allow an attacker to execute arbitrary code.
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High 7.8
Out-of-bounds Write in LS Electric GMWin 4
An out-of-bounds write vulnerability exists within the parsing of PRJ files. The issues result from the lack of proper validation of user-supplied data, which can result in different memory corruption issues within the application, such as reading and writing…
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High 8.8
Dell ControlVault3/ControlVault3 Plus cv_upgrade_sensor_firmware out-of-bounds write vulnerability
An out-of-bounds write vulnerability exists in the cv_upgrade_sensor_firmware functionality of Dell ControlVault3 prior to 5.15.10.14 and Dell ControlVault 3 Plus prior to 6.2.26.36. A specially crafted ControlVault API call can lead to an out-of-bounds write…
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High 7.5
Libxml2: integer overflow in xmlbuildqname() leads to stack buffer overflow in libxml2
A flaw was found in libxml2's xmlBuildQName function, where integer overflows in buffer size calculations can lead to a stack-based buffer overflow. This issue can result in memory corruption or a denial of service when processing crafted input.
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High 7.8
Acrobat Reader | Out-of-bounds Write (CWE-787)
Acrobat Reader versions 24.001.30235, 20.005.30763, 25.001.20521 and earlier are affected by an out-of-bounds write vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user intera…
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High 8.8
MicroDicom DICOM Viewer Out-of-bounds Write
MicroDicom DICOM Viewer suffers from an out-of-bounds write vulnerability. Remote attackers are able to exploit this issue to potentially execute arbitrary code on affected installations of DICOM Viewer. User interaction is required to exploit the vulnerabili…
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High 7.8
Substance3D - Sampler | Out-of-bounds Write (CWE-787)
Substance3D - Sampler versions 5.0 and earlier are affected by an out-of-bounds write 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 op…
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High 7.8
Substance3D - Sampler | Out-of-bounds Write (CWE-787)
Substance3D - Sampler versions 5.0 and earlier are affected by an out-of-bounds write 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 op…
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High 7.8
Substance3D - Painter | Out-of-bounds Write (CWE-787)
Substance3D - Painter versions 11.0.1 and earlier are affected by an out-of-bounds write 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…
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High 7.8
InDesign Desktop | Out-of-bounds Write (CWE-787)
InDesign Desktop versions ID20.2, ID19.5.3 and earlier are affected by an out-of-bounds write 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…
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High 7.8
InDesign Desktop | Out-of-bounds Write (CWE-787)
InDesign Desktop versions ID20.2, ID19.5.3 and earlier are affected by an out-of-bounds write 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…
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High 7.8
InDesign Desktop | Out-of-bounds Write (CWE-787)
InDesign Desktop versions ID20.2, ID19.5.3 and earlier are affected by an out-of-bounds write 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…
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High 7.8
Sante DICOM Viewer Pro DCM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
Sante DICOM Viewer Pro DCM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Sante DICOM Viewer Pro. User interaction is required to exploit …
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High 7.5CVE-2025-5688 Public exploit
Out of Bounds Write in FreeRTOS-Plus-TCP
We have identified a buffer overflow issue allowing out-of-bounds write when processing LLMNR or mDNS queries with very long DNS names. This issue only affects systems using Buffer Allocation Scheme 1 with LLMNR or mDNS enabled. Users should upgrade to the la…
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High 7.3
File Parsing Memory Corruption in CNCSoft-G2
Delta Electronics CNCSoft-G2 lacks proper validation of the user-supplied file. If a user opens a malicious file, an attacker can leverage this vulnerability to execute code in the context of the current process.
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High 7.3
Out-of-bounds Write in CNCSoft
Delta Electronics CNCSoft lacks proper validation of the user-supplied file. If a user opens a malicious file, an attacker can leverage this vulnerability to execute code in the context of the current process.
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High 7.3
Out-of-bounds Write in CNCSoft
Delta Electronics CNCSoft lacks proper validation of the user-supplied file. If a user opens a malicious file, an attacker can leverage this vulnerability to execute code in the context of the current process.
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High 7.3
Out-of-bounds Write in CNCSoft
Delta Electronics CNCSoft lacks proper validation of the user-supplied file. If a user opens a malicious file, an attacker can leverage this vulnerability to execute code in the context of the current process.
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High 7.3
Out-of-bounds Write in CNCSoft
Delta Electronics CNCSoft lacks proper validation of the user-supplied file. If a user opens a malicious file, an attacker can leverage this vulnerability to execute code in the context of the current process.
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High 8.6
An issue was discovered in Samsung Mobile Processor Exynos 1480 and 2400. The lack of a length check leads to out-of-bo…
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High 8.6
An issue was discovered in Samsung Mobile Processor Exynos 1480 and 2400. The lack of a length check leads to out-of-bo…
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High 8.8
Out of bounds read and write in V8 in Google Chrome prior to 137.0.7151.68 allowed a remote attacker to potentially exp…
KEV Jun 5, 2025 -
High 8.8
Out of bounds write in V8 in Google Chrome prior to 137.0.7151.55 allowed a remote attacker to potentially exploit heap…
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High 7.3
Memory safety bugs fixed in Firefox 139 and Thunderbird 139
Memory safety bugs present in Firefox 138 and Thunderbird 138. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefo…
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High 8.1
Memory safety bug fixed in Firefox ESR 128.11 and Thunderbird 128.11
Memory safety bug present in Firefox ESR 128.10, and Thunderbird 128.10. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 128…
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High 7.5
Weidmueller: Out-of-Bounds Write Vulnerability in Industrial Ethernet Switches
An unauthenticated remote attacker can exploit insufficient input validation to write data beyond the bounds of a buffer, potentially leading to a denial-of-service condition for the devices.
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High 7.8
Sandboxie Arbitrary Kernel Write in SbieDrv.sys API (API_GET_SECURE_PARAM)
Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. Starting in version 1.3.0 and prior to version 1.15.12, Api_GetSecureParam fails to sanitize incoming pointers, and implicitly trusts that the pointer th…
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High 8.8CVE-2025-37947 Public exploit
ksmbd: prevent out-of-bounds stream writes by validating *pos
In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent out-of-bounds stream writes by validating *pos ksmbd_vfs_stream_write() did not validate whether the write offset (*pos) was within the bounds of the existing stream data lengt…
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High 7.8
V-SFT v6.2.5.0 and earlier contains an issue with out-of-bounds write in VS6ComFile!MakeItemGlidZahyou function. Openin…
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High 7.8
V-SFT v6.2.5.0 and earlier contains an issue with out-of-bounds write in VS6EditData!CDataRomErrorCheck::MacroCommandCh…
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High 7.8
V-SFT v6.2.5.0 and earlier contains an issue with out-of-bounds write in VS6MemInIF!set_temp_type_default function. Ope…
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High 8.8
Out-of-bounds access when optimizing linear sums
An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes. This vulnerability was fixed in Firefox 138.0.4, Firefox ESR 128.10.1, Firefox ESR 115.23.1, Thunderbird 128.10.2, and Thunderbird 138.0.2.
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High 7.8
Out of Bounds Write in CheckPins() in NI Circuit Design Suite
There is a memory corruption vulnerability due to an out of bounds write in CheckPins() when using the SymbolEditor in NI Circuit Design Suite. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploitation requi…
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High 7.8
Out of Bounds Write in Library!DecodeBase64() in NI Circuit Design Suite
There is a memory corruption vulnerability due to an out of bounds write in Library!DecodeBase64() when using the SymbolEditor in NI Circuit Design Suite. This vulnerability may result in information disclosure or arbitrary code execution. Successful exploit…
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High 8.3
Out-of-bounds Write in pcl
Out-of-bounds Write vulnerability in PointCloudLibrary pcl allows Overflow Buffers. Since version 1.14.0, PCL by default uses a zlib installation from the system, unless the user sets WITH_SYSTEM_ZLIB=FALSE. So this potential vulnerability is only relevant if…
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High 7.5
An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 12…
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High 7.5
An issue was discovered in NAS in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2…
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High 7.8
Substance3D - Modeler | Out-of-bounds Write (CWE-787)
Substance3D - Modeler versions 1.21.0 and earlier are affected by an out-of-bounds write 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…