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)
-
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.
-
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.
-
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.
-
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.
-
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].
-
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].
-
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
3,618 results · Clear filters · Feed
-
High 7.8
Photoshop Desktop | Out-of-bounds Write (CWE-787)
Photoshop Desktop is 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 open a malicious file.
-
High 7.8
Photoshop Desktop | Out-of-bounds Write (CWE-787)
Photoshop Desktop is 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 open a malicious file.
-
High 7.8
Photoshop Desktop | Out-of-bounds Write (CWE-787)
Photoshop Desktop is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Substance3D - Stager | Out-of-bounds Write (CWE-787)
Substance3D - Stager is 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 open a malicious file.
-
High 7.8
Dimension | Out-of-bounds Write (CWE-787)
Dimension is 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 open a malicious file.
-
High 8.1
Windows Schannel Remote Code Execution Vulnerability
Out-of-bounds write in Windows Schannel allows an unauthorized attacker to execute code over a network.
-
High 8.8
Microsoft Office Excel Remote Code Execution Vulnerability
Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
-
High 8.8
.NET Remote Code Execution Vulnerability
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
-
High 7.5
ASP.NET Core Denial of Service Vulnerability
Out-of-bounds write in ASP.NET Core allows an unauthorized attacker to deny service over a network.
-
High 8.8
.NET Framework Remote Code Execution Vulnerability
Out-of-bounds write in .NET Framework allows an unauthorized attacker to execute code over a network.
-
High 8.8
.NET Remote Code Execution Vulnerability
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
-
High 8.1
.NET and Visual Studio Remote Code Execution Vulnerability
Out-of-bounds write in .NET allows an unauthorized attacker to execute code over a network.
-
High 7.8
Windows Kernel Elevation of Privilege Vulnerability
Out-of-bounds write in Windows Kernel allows an authorized attacker to elevate privileges locally.
-
High 8.8
Windows Active Directory Domain Services Remote Code Execution Vulnerability
Out-of-bounds write in Active Directory Domain Services allows an authorized attacker to execute code over a network.
-
High 7.0
Windows Fast FAT Driver Elevation of Privilege Vulnerability
Out-of-bounds write in Windows Fast FAT Driver allows an authorized attacker to elevate privileges locally.
-
High 7.8
Windows EAPHost Service Elevation of Privilege Vulnerability
Out-of-bounds write in Windows EAPHost Service allows an authorized attacker to elevate privileges locally.
-
High 8.8
Windows GDI Remote Code Execution Vulnerability
Out-of-bounds write in Windows GDI allows an unauthorized attacker to execute code over a network.
-
High 7.8
Windows NTFS Remote Code Execution Vulnerability
Out-of-bounds write in Windows NTFS allows an authorized attacker to execute code locally.
-
High 7.5
Windows DHCP Server Remote Code Execution Vulnerability
Out-of-bounds write in Windows DHCP Server allows an unauthorized attacker to execute code over a network.
-
High 8.1
Microsoft Windows PDF Remote Code Execution Vulnerability
Out-of-bounds write in Microsoft Windows PDF allows an unauthorized attacker to execute code over a network.
-
High 7.8
Adobe Framemaker | Out-of-bounds Write (CWE-787)
Adobe Framemaker is 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 open a malicious file.
-
High 7.8
Adobe Framemaker | Out-of-bounds Write (CWE-787)
Adobe Framemaker is 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 open a malicious file.
-
High 7.8
Adobe Framemaker | Out-of-bounds Write (CWE-787)
Adobe Framemaker is 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 open a malicious file.
-
High 7.1
CvFWD Out-of-Bounds Write
CvFWD contained an out-of-bounds write affecting service availability. Software customers upgrade to resolved maintenance release. Software customers upgrade to resolved maintenance release. Update all Commvault installations, including CommServe, Webserver, …
-
High 7.1
UEFI OOB Write and Buffer Overflow Vulnerabilities
AMI APTIOV contains vulnerabilities in BIOS where users may cause "Out-of-bounds Write” by local access. Successful exploitation of this vulnerability could lead to buffer overflows, memory corruption, and arbitrary code execution, and also impact Confidenti…
-
High 7.3
NVIDIA DALI contains a vulnerability where an attacker could cause an uncontrolled out-of-bounds write. A successful ex…
-
High 7.5
Buffer Overflow vulnerability in libwebsockets main 106d542c allows a remote attacker to cause a denial of service via …
-
High 7.1
Out-of-bounds write in Progress MarkLogic Server
Progress MarkLogic Server 12.x releases before 12.1.0 and 11.x releases before 11.3.7 contain an out-of-bounds write vulnerability in certain language-processing functionality. A remote authenticated attacker could exploit this vulnerability to cause server i…
-
High 7.0
Out-of-bounds write in libsamsungtts.so prior to SMR Oct-2026 Release 1 allows local attackers to execute arbitrary cod…
-
High 7.0
Out-of-bounds write in libsmkvextractor.so prior to SMR Oct-2026 Release 1 allows local attackers to execute arbitrary …
-
High 7.1
ZDR decoding in libnfs through 6.0.2 before 7613236 has an out-of-bounds write related to lib/libnfs-zdr.c with libnfs_…
-
High 7.8
Out-of-bounds write in the NXP MCUX TRNG entropy driver for non-word-multiple request lengths
The NXP MCUX TRNG entropy driver in drivers/entropy/entropy_mcux_trng.c passed the caller's byte count straight to the vendor SDK routine TRNG_GetRandomData(). On i.MX RT5xx and RT6xx parts the SDK compiles its TRNG_SW_HEALTH_TESTS variant, which always copie…
-
High 7.8
Unbounded variable-length array in fuel gauge syscall verifiers allows kernel stack overflow from user mode
The user-mode syscall verifiers z_vrfy_fuel_gauge_get_props() and z_vrfy_fuel_gauge_set_props() in drivers/fuel_gauge/fuel_gauge_syscall_handlers.c declared two variable-length arrays, union fuel_gauge_prop_val k_vals[len] and fuel_gauge_prop_t k_props[len], …