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
3,630 results · Clear filters · Feed
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High 7.8
OpenImageIO: IFF ZBUFFER tile read writes past caller tile buffer
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A zbuffer-only tiled iff is exposed with a 16-bit public imagespec while the deco…
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High 8.1
IBM MQ queue manager is vulnerable to unauthenticated remote code execution
IBM MQ could allow a remote attacker to cause a denial of service or execute arbitrary code due to a buffer overflow when processing malformed compressed data on channels configured with compression enabled.
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High 7.8
OpenImageIO OpenEXR plugin partial edge tile heap out-of-bounds write
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A valid tiled openexr image whose width is not a multiple of its tile width can t…
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High 8.2
Qemu-kvm: vapic writable rom alias can escape the option-rom window and expose locked smram
A flaw was found in QEMU. The VAPIC setup hypercall in hw/i386/vapic.c does not validate that the writable RAM alias remains within the option ROM window. A privileged guest user on a Q35/KVM machine can position this alias over locked SMRAM, bypassing chipse…
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High 8.8
An out-of-bounds write vulnerability exists in some of the Ethernet switches because of improper validation of the user…
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High 7.5
snappy-java through 1.1.10.8 Buffer Overflow in Snappy.compress
snappy-java through 1.1.10.8 contains a buffer overflow vulnerability in Snappy.compress(ByteBuffer, ByteBuffer) that writes past the end of the destination buffer. Attackers can supply incompressible data that exceeds the destination buffer's remaining capac…
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High 7.3
Hamlib: rigctld `send_raw` Stack Out-of-Bounds Write and Uninitialized Memory Disclosure
Hamlib is a ham radio control library for radios, rotators, and amplifiers. Prior to 4.7.2, the unauthenticated rigctld send_raw command on TCP port 4532 reaches rigctl_send_raw() in tests/rigctl_parse.c, which writes a NUL byte at buf[buf_len + 1] outside it…
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High 8.1
Heap overflow via oversized decrypted TLS record sequence in Windows Secure Channel stream
A heap-based buffer overflow exists in the TLS transport layer of the MongoDB C Driver when built with the Windows platform TLS backend. A remote endpoint that the client connects to can cause the driver to write uncontrolled data outside the bounds of a heap…
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High 7.8
SAIL: XBM X10 decoder writes 2 bytes per literal into a 1-byte-per-literal buffer (heap out-of-bounds write)
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. Prior to 1.0.0, sail_codec_load_frame_v8_xbm() in src/sail-codecs/xbm/xbm.c allocates the decoded pixel buffer using the X11 one-byte-per-li…
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High 7.8
Out-of-bounds Write in DSP Service
Memory corruption when processing escape handling flow with insufficient user buffer sizes.
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High 7.8
Out-of-bounds Write in Video
Memory Corruption when processing data with large offset and length values exceeds buffer limits during data copy operations.
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High 7.8
Out-of-bounds Write in Video
Memory corruption when processing decode statistics due to insufficient validation of offset against structure size.
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High 7.8
LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model
LightGBM through 4.7.0 fails to validate child and split array values when parsing text models, allowing attackers to write out-of-bounds memory during SHAP prediction. Attackers can craft malicious model files with invalid node references that trigger out-of…
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High 7.0CVE-2026-91097 Public exploit
HP Linux Imaging and Printing (HPLIP) Software– Multiple Vulnerabilities
HP has identified and remediated multiple externally reported vulnerabilities within HPLIP. The findings affect several software components that could potentially enable remote code execution, privilege escalation, denial of service, information disclosure, o…
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High 8.8
Out of bounds write in ServiceWorker in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbit…
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High 7.0
In google_mba_recv_msg of google_mba_poll.c, there is a possible out-of-bounds write due to a race condition. This coul…
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High 7.0
In trusty_dputc of generic-arm64-smcall.c, there is a possible out-of-bounds write due to a race condition. This could …
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High 8.8
In IP Multimedia Subsystem, there is a possible out-of-bounds write due to improper input validation. This could lead t…
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High 7.8
In phNxpNciHal_ext_process_nfc_init_rsp of phNxpNciHal_ext.cc, there is a possible out-of-bounds write due to a missing…
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High 8.8
In Av1DecodeFrameTag of vp9hwd_headers.cc, there is a possible out-of-bounds write due to a missing bounds check. This …
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High 8.8
In Start of AudioRtpPayloadEncoderNode.cpp, there is a possible out-of-bounds write due to improper input validation. T…
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High 7.8
In VPU, there is a possible out-of-bounds write due to a confused deputy. This could lead to local escalation of privil…
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High 8.8
In ReadTileInfo of vp9hwd_headers.cc, there is a possible out-of-bounds write due to a missing bounds check. This could…
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High 8.8
In s_decode_vui_param of fw_hevc_dec_header.c, there is a possible out-of-bounds write due to a logic error in the code…
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High 7.8
In VPU, there is a possible out-of-bounds write due to an integer overflow. This could lead to local escalation of priv…
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High 7.8
In gf_base_update_finger_base of gf_base.c, there is a possible out-of-bounds write due to a heap buffer overflow. This…
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High 8.4
In Wave6VpuDecFlush of wave6.c, there is a possible out-of-bounds write due to a missing bounds check. This could lead …
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High 8.8
In Cellular Modem, there is a possible out-of-bounds write due to a heap buffer overflow. This could lead to remote esc…
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High 7.8
In gf_ta_test_set_config of gf_ta_test.c, there is a possible out-of-bounds write due to improper input validation. Thi…
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High 8.8
In multiple locations, there is a possible out-of-bounds write due to a logic error in the code. This could lead to rem…
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High 8.8
In Vp9DecodeFrameTag of vp9hwd_headers.cc, there is a possible out-of-bounds write due to a missing bounds check. This …
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High 8.8
In Cellular Modem, there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote cod…
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High 7.8
pdfforge PDF Architect PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
pdfforge PDF Architect PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of pdfforge PDF Architect. User interaction is required to exploit …
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High 7.8
pdfforge PDF Architect PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
pdfforge PDF Architect PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of pdfforge PDF Architect. User interaction is required to exploit …
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High 7.8
OriginLab Origin Viewer OGWU File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability
OriginLab Origin Viewer OGWU File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of OriginLab Origin Viewer. User interaction is required to explo…
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High 8.1
IBM MQ .NET client is vulnerable to remote code execution
IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote attacker to cause a denial of service or p…
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High 7.8
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27 and iPadOS 27, …
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High 7.3
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26…
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High 7.8
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27, …
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High 7.1
An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6.1 and iPadOS…