Weakness (CWE)
CWE-122: Heap-based Buffer Overflow
The product writes past the end of a buffer that was allocated on the heap.
How to prevent it (7 mitigations)
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Pre-design: Use a language or compiler that performs automatic bounds checking.
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Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
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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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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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Implementation
Implement and perform bounds checking on input.
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Implementation
Do not use dangerous functions such as gets. Look for their safe equivalent, which checks for the boundary.
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Operation
Use OS-level preventative functionality. This is not a complete solution, but it provides some defense in depth.
Source: MITRE CWE-122
4,078 results · Feed
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Critical 9.4
Heap-based Buffer Overflow Vulnerability in JP1/Automatic Job Management System 3
Heap-based Buffer Overflow Vulnerability in JP1/Automatic Job Management System 3. This issue affects JP1/Automatic Job Management System 3 - Manager: from 11-00 before 13-50-31; JP1/Automatic Job Management System 3 - Agent: from 11-00 before 13-50-31.
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Critical 9.4
Heap-based Buffer Overflow Vulnerability in JP1 Products
Heap-based Buffer Overflow Vulnerability in JP1 Products. This issue affects JP1/Integrated Management 3 - Manager: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 - Manager: from 13-00 before 13-50-31; JP1/Automatic Job Management System 3 …
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Critical 9.8
Heap-based Buffer Overflow Vulnerability in JP1/Base
Heap-based Buffer Overflow Vulnerability in JP1/Base. This issue affects JP1/Base: from 11-00 before 12-50-54.
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High 8.8
A malicious actor with access to the adjacent network could exploit a Heap-based Buffer Overflow vulnerability found in…
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High 7.5
A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2…
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Medium 6.8CVE-2026-116488 Public exploit
NXP MCUXpresso SDK USB Middleware before 2.13.0 Heap Overflow via Host Class Drivers
NXP MCUXpresso SDK USB middleware (mcuxsdk-middleware-usb) before 2.13.0 contains a heap buffer overflow in host audio, video and CDC class drivers that trust device-supplied bNumEndpoints and bLength values. A malicious USB device can supply crafted descript…
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Medium 5.4
libimobiledevice Web Inspector webinspector.c webinspector_receive_with_timeout heap-based overflow
A vulnerability was detected in libimobiledevice up to 1.4.0. The affected element is the function webinspector_receive_with_timeout of the file src/webinspector.c of the component Web Inspector. The manipulation results in heap-based buffer overflow. It is p…
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Medium 6.3
libimobiledevice AFC afc.c heap-based overflow
A vulnerability was identified in libimobiledevice up to 1.4.0. This affects an unknown part of the file src/afc.c of the component AFC. Such manipulation leads to heap-based buffer overflow. The attack can be executed remotely. The exploit is publicly availa…
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Medium 6.3
GNOME libgsf OLE2 gsf-infile-msole.c ole_info_read_metabat heap-based overflow
A security vulnerability has been detected in GNOME libgsf up to 1.14.60. The impacted element is the function ole_info_read_metabat of the file gsf/gsf-infile-msole.c of the component OLE2 Parser. The manipulation leads to heap-based buffer overflow. The att…
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Low 3.3
ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 Heap Buffer Overflow via X11 Animate
ImageMagick before 6.9.13-58 and 7.x before 7.1.2-33 contains a heap-based buffer overflow in the X11 animate operation when processing crafted images. Attackers can supply a malicious image that, when a user runs an X11 animate operation on it, overwrites he…
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Critical 9.8
Multiple AiDot devices are vulnerable to a heap-based buffer overflow via SSDP location header parsing.
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High 8.8CVE-2026-92208 Public exploit
NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability
NoMachine mDNS Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NoMachine. Authentication is not required to exploit this vulnerability.…
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Critical 9.8
GStreamer rtpL16depay Heap-based Buffer Overflow Remote Code Execution Vulnerability
GStreamer rtpL16depay Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulner…
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Medium 6.4
Heap-based Buffer Overflow in ntpsec
Heap-based buffer overflow in the JJY refclock driver in NTPsec ntpd before 1.2.6 allows an attacker who controls the Telephone JJY time source to corrupt memory or crash ntpd via more than six time replies.
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High 8.9
Sharp before 0.35.4 RCE via bundled libheif AVIF decoding
Sharp before 0.35.4 bundles a vulnerable libheif dependency that allows attackers to achieve possible remote code execution on glibc-based Linux by supplying crafted images. Attackers can submit malicious AVIF/HEIF input to applications processing untrusted i…
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High 8.8
FreeRDP before 3.32.1 Heap Buffer Overflow via rdpsnd_server_select_format
FreeRDP before 3.32.1 contains a heap-based buffer overflow in the server-side rdpsnd channel because an integer wraparound in rdpsnd_server_select_format() DVI_ADPCM block-alignment arithmetic bypasses validation. A malicious RDP client can send two SNDC_FOR…
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Medium 5.5
A heap use-after-free in the gf_filter_pid_send_event_downstream function (/filter_core/filter_pid.c) of GPAC Project/M…
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High 8.8
Buffer overflow in ANGLE in Google Chrome on on Windows prior to 156.0.8078.47 allowed a remote attacker to execute arb…
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High 8.8
Buffer overflow in ANGLE in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbit…
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High 8.8
Buffer overflow in WebGL in Google Chrome on on Android prior to 156.0.8078.47 allowed a remote attacker to potentially…
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Critical 9.1
A heap-based buffer overflow vulnerability exists in the boa formUpload() functionality of X2000R (version(s): TOTOLINK…
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High 7.1
Raptor RDF Syntax Library 2.0.15 through 2.0.16 Heap Buffer Overflow via Language Tag
Raptor RDF Syntax Library from 2.0.15 through 2.0.16 contains a heap-based buffer overflow vulnerability in raptor_new_term_from_counted_literal() caused by truncating language tag length to an unsigned char. Attackers can supply Turtle, TriG, N-Triples or N-…
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High 7.5
A heap-based buffer overflow vulnerability could allow a remote authenticated attacker to achieve arbitrary code execut…
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Critical 9.2CVE-2026-112403 Public exploit
Pillow: Heap buffer overflow in ImagingJpegDecode
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's JPEG decoder can write a full-width scanline into a buffer sized for a requested draft scale. ImagingJpegDecode does not verify libjpeg's actual output width and component count after scaling is re…
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Critical 9.2CVE-2026-112398 Public exploit
Pillow: Heap buffer overflow in FlashPix (FPX) JPEG decoding leads to code execution
Pillow is a Python imaging library. Prior to 13.0.0, Pillow's FlashPix JPEG-tile decoder can write decoded scanlines beyond the allocated tile buffer. FlashPix (FPX) JPEG decoding selects raw mode LA with two bytes per pixel, while an unrecognized JPEG mode c…
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Medium 6.5
Pillow tiled-TIFF decoder reads past tile buffer in copy4 (Unpack.c:1290)
Pillow is a Python imaging library. From 8.2.0 until 13.0.0, Pillow's tiled-TIFF decoder can read past the tile buffer while copying four-byte pixels. In _decodeTile, libtiff can return a tile allocation smaller than the required row stride multiplied by the …
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Critical 9.2
Pillow: Heap buffer overflow in _tiffWriteProc when saving TIFF to BytesIO
Pillow is a Python imaging library. From 2.0.0 until 13.0.0, Pillow has a heap buffer overflow and stale-heap disclosure in _tiffWriteProc when saving compressed TIFF data through libtiff to a target without a usable fileno(), such as BytesIO. The callback si…
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High 8.8
IBM MQ Buffer Overflow
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow when processing MQPUT operations with malformed message options.
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High 8.8
IBM MQ Buffer Overflow
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow when processing MQPUT or MQPUT1 operations with malformed message handle properties.
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Medium 5.4
IBM MQ Heap-based Buffer Overflow
IBM MQ could allow an authenticated attacker to cause a limited denial of service and obtain very limited information about process memory layout due to an out-of-bounds read when processing a specially crafted client request.
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Medium 6.1
libaribb24 (aribb24) through 1.0.3 Heap Buffer Overflow via parse_data_unit_statement_body
libaribb24 (aribb24) through 1.0.3 contains a heap-based buffer overflow vulnerability in src/parser.c that allows attackers to corrupt heap memory via an oversized caption data unit. Attackers can supply a crafted caption PES packet in a media file or broadc…
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High 8.1
HLL 反序列化 lenTotal/lenUsed 校验缺失导致堆越界写
在 openGauss-server 的 src/gausskernel/cbb/utils/hll/hll.cpp 中，内置函数 HllObjectUnpack() 存在长度校验缺陷。该函数从用户提供的 packed HLL 解析 lenUsed 与 lenTotal 后，仅检查输入长度足以覆盖 HLL_HEAD_SIZE + lenUsed，随后按 lenTotal 分配缓冲区、按 lenUsed 调用 memcpy_s() 拷贝输入，既未校验 lenTotal >= lenUsed，也将 memcpy_s(…
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Medium 5.5
A heap buffer overflow in the gf_odf_ac4_cfg_alternative_info function (/odf/descriptors.c) of GPAC Project/MP4Box 2.5-…
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High 7.5
snac2 before 2.93 Heap-Based Buffer Overflow via JSON Parser _xs_json_load_lexer()
snac2 before 2.93 contains a heap-based buffer overflow vulnerability in _xs_json_load_lexer() that allows unauthenticated remote attackers to corrupt heap memory by sending JSON strings containing a \u0000 escape. Attackers can send a single crafted applicat…
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Medium 6.8
ssldump Heap Buffer Overflow in FAN/1 X.509 Fingerprint Formatting
The fanx_fingerprint function in ssl/sslxprint.c of ssldump allocates a heap buffer for formatting FAN/1 X.509 certificate fingerprints. The allocation size is computed as strlen(b64) + strlen(hex) + 31, but the format string "fan1:x509:server:passive:%s:sha2…
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High 7.3
FreeRDP before 3.32.0 Heap Buffer Overflow via Persistent Cache v2 Parser
FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2 that allows local attackers to corrupt heap memory via integer wraparound in bitmap size calculation. Attackers can craft a persistent cache v2 file with ove…
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High 7.3
FreeRDP before 3.32.0 Heap Buffer Overflow via persistent_cache_read_entry_v3
FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v3 that allows local attackers to corrupt memory by supplying a crafted v3 persistent cache file. Attackers can set large width and height values that wrap the …
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Medium 5.5
A heap buffer overflow in the stbl_AddSize function (isomedia/stbl_write.c) of GPAC MP4Box v2.4 allows attackers to cau…
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High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
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High 8.8
Microsoft Office Word Remote Code Execution Vulnerability
Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.