Weakness (CWE)
CWE-190: Integer Overflow or Wraparound
The product performs a calculation that can
produce an integer overflow or wraparound when the logic
assumes that the resulting value will always be larger than
the original value. This occurs when an integer value is
incremented to a value that is too large to store in the
associated representation. When this occurs, the value may
become a very small or negative number.
How to prevent it (7 mitigations)
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Requirements
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
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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.
If possible, choose a language or compiler that performs automatic bounds checking.
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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 [REF-1482].
Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
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Implementation
Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
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Implementation
Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
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Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
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Implementation
Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
Source: MITRE CWE-190
2,072 results · Feed
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High 8.8
Integer overflow in the Graphics component
Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
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High 7.0
OpenS100 S-102 Parser Integer Overflow Heap Buffer Overflow
OpenS100 through commit 2b1dafc contains an integer overflow vulnerability in the S-102 Bathymetric Surface parser. An attacker can supply a crafted S-102 HDF5 file with malicious grid dimension metadata that causes memory corruption when a user opens it. In …
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Critical 10.0
Integer Overflow or Wraparound in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 19.2 before 19.2.8, 19.3 before 19.3.5, and 19.4 before 19.4.2 that, under certain conditions, could have allowed an unauthenticated user to execute arbitrary code on the GitLab server…
KEV Oct 29, 2026 -
High 7.8
An issue in mp4v2 2.0.0 allows an attacker to execute arbitrary code via the MP4RtpAtom::ReadHntiType() in src/atom_rtp…
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Medium 5.9
psqlODBC SQLBindParameter heap memory corruption when binding more than 32767 parameters
Integer wraparound in psqlODBC SQLBindParameter allows an application, or an attacker who controls how many parameters the application binds on one statement, to corrupt heap memory. psqlODBC stores the binding count in a signed 16-bit field. Binding paramete…
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Critical 9.1
Apache DataSketches: datasketches-cpp: Out-of-bounds read in compact Theta sketch deserialization allows denial of service via a crafted sketch
Out-of-bounds read in the compact Theta sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp). compact_theta_sketch::deserialize() and wrapped_compact_theta_sketch::wrap() read header fields before checking that the input was long enough.…
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Medium 5.3
x64dbg-MCP Server vulnerable to pre-authentication denial of service through Content-Length integer overflow
x64dbg-MCP Server is a native Model Context Protocol (MCP) plugin for x64dbg that exposes the debugger's full functionality over HTTP. Prior to 1.2, src/core/mcp_server.zig parses an unbounded Content-Length value in parseContentLength() and uses it in unchec…
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High 8.8
Integer overflow in dynamic kernel object allocation allows user-mode threads to corrupt the kernel heap
dynamic_object_create() in kernel/userspace/userspace.c computed the backing allocation for a dynamically allocated kernel object as obj_size_get(otype) + size, and for thread stack elements as STACK_ELEMENT_DATA_SIZE(size) (a round-up plus fixed overhead), w…
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Medium 5.5
SumatraPDF: Signed integer overflow in the LIT header parsing causes invalid-pointer read
SumatraPDF is a multi-format reader for Windows. In 3.7.0.22298, LitParseHeader() in src/LitDoc.cpp computes the attacker-controlled hdrLen + nPieces * 16 section offset using signed 32-bit arithmetic without validating the complete result. When the component…
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Medium 5.9
Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver
An integer overflow in BSON value-length handling in the MongoDB Go Driver can cause a runtime panic when an application validates or accesses a malformed BSON document. An unauthenticated actor who can supply BSON bytes to an affected application may termina…
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Medium 6.8
containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bou…
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Medium 6.5
Excelize: A Zip64 uncompressed-size of 2^63 panics OpenFile/OpenReader
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.1.0 to 2.11.0, a Zip64 uncompressed size with the high bit set is converted from uint64 to a negative int64 before signed size-limit checks and allocation. ReadZipR…
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High 7.5
Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil error, causing negative slice index panic on r="0" rows
Excelize is a Go language library for reading and writing Microsoft Excel spreadsheets. From 2.0.0 to 2.11.0 in github.com/xuri/excelize/v2 and from 1.1.0 to 1.4.1 in github.com/xuri/excelize, ColumnNameToNumber accumulates a bijective base-26 value in int64 …
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Medium 5.3
ImageMagick: Heap Buffer Over-Write in distributed pixel cache server will result in a crash
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-31, a client connected to the distributed pixel cache server can send crafted pixel data that triggers an integer-size calculation error and a heap b…
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Medium 5.1
ImageMagick: Heap Buffer Over-Write in GetVirtualPixels api will result in a crash
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 6.9.13-56 and 7.1.2-31, a crafted local call to the GetVirtualPixels API can trigger an integer calculation error and write beyond a heap buffer, crashing …
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Critical 9.3CVE-2026-59346 Public exploit
VMware Workstation and Fusion VMXNET3 integer-overflow vulnerability
VMware Workstation and Fusion contain an integer-overflow vulnerability. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Affected versions: - …
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Critical 9.6
Integer overflow in Media in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to potentially execute arbi…
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Medium 4.3
Integer overflow in Compositing in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to obtain cross-origi…
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Critical 9.6
Integer overflow in WebGL in Google Chrome on on Android prior to 155.0.8059.39 allowed a remote attacker to potentiall…
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High 7.8
libmikmod before 3.3.14 Heap Buffer Overflow via OKT Loader OKT_doPBOD
libmikmod before 3.3.14 contains an integer overflow in the Oktalyzer loader OKT_doPBOD() that allows attackers to cause heap buffer overflow via crafted track counts. Attackers can supply an OKT module whose SLEN chunk wraps the 16-bit numtrk value, causing …
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High 7.8
libmikmod before 3.3.14 Heap Buffer Overflow via DSM Loader Integer Overflow
libmikmod before 3.3.14 contains an integer overflow vulnerability in DSM_Load() in load_dsm.c that allows attackers to trigger heap buffer overflow via crafted track counts. Attackers can supply a DSM module whose numchn and numpat product wraps a 16-bit val…
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Low 1.8
Integer Truncation Leading to Heap Corruption in GNU Aspell
GNU Aspell contains an integer truncation vulnerability in the WritableDict::add() function in modules/speller/default/writable.cpp. When loading a personal wordlist, the word length is stored as a single byte, causing truncation for words whose length is a m…
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High 7.8
In rw_t4t_update_file of rw_t4t.cc, there is a possible out-of-bounds write due to an integer overflow. This could lead…
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Medium 6.7
In display, there is a possible escalation of privilege due to an integer overflow. This could lead to local escalation…
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Medium 5.1
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Medium 4.3
Integer overflow in Skia in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to leak cross-origin data vi…
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Medium 4.3
Integer overflow in Compositing in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to leak cross-origin …
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High 8.7
Apache Thrift: PHP accelerator sizes a stack buffer from a wire-controlled string length
Stack-based Buffer Overflow, Integer Overflow or Wraparound vulnerability in Apache Thrift php bindings. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes the issue.
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Critical 9.2
Apache Thrift: C++ THttpTransport grows its line buffer without bound
Allocation of resources without limits or throttling, Integer overflow or wraparound, Heap-based buffer overflow vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.25.0. Users are recommended to upgrade to version 0.25.0, which fixes t…
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High 8.8
Apache HTTP Server: mod_dav_fs namespace overflow
Integer overflow in mod_dav_fs in Apache HTTP Server through 2.4.68 allows an authenticated WebDAV client with write access to crash worker processes and persistently corrupt a directory's property database via PROPPATCH requests declaring many XML namespaces.
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High 7.5
Imager versions before 1.037 for Perl exit the process reading a raw image with an out-of-range raw_datachannels value in i_readraw_wiol
Imager versions before 1.037 for Perl exit the process reading a raw image with an out-of-range raw_datachannels value in i_readraw_wiol. Nothing range-checks raw_datachannels. The line buffer is sized as the image width times the channel count with no overfl…
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High 7.8
NVIDIA GPU Display Driver for Windows contains a vulnerability in the kernel module where an attacker could cause an in…
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High 7.8
NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer where an unprivileged…
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High 7.8
NVIDIA GPU Display Driver for Windows and Linux contains a vulnerability in the kernel mode layer, where a user could c…
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High 7.8
NVIDIA vGPU Virtual GPU Manager for Windows and Linux contains a vulnerability in the kernel mode layer, where a guest …
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Medium 5.6
Blosc C-Blosc2 blosclz Decompression blosclz.c blosclz_decompress integer overflow
A vulnerability was determined in Blosc C-Blosc2 up to 3.3.2. This impacts the function blosclz_decompress of the file blosc/blosclz.c of the component blosclz Decompression. Executing a manipulation can lead to integer overflow. The attack may be launched re…
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High 7.5
Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions
An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes…
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High 8.7
Apache PLC4X: Go binding: unbounded allocation and framing failures on wire-controlled lengths
Integer Overflow, Improper Validation of Array Index, Uncontrolled Recursion and Memory Allocation with Excessive Size Value in the Go implementation of Apache PLC4X (PLC4Go) allow a malicious device, or an attacker able to inject network traffic, to crash or…
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Medium 6.5
Nothings stb Image Encoding stb_image_write.h stbi_write_tga_core integer overflow
A flaw has been found in Nothings stb up to 1.16. This affects the function stbi_write_png_to_mem/stbi_write_jpg_core/stbi_write_tga_core in the library stb_image_write.h of the component Image Encoding. Executing a manipulation can lead to integer overflow. …
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Medium 6.5
Nothings stb stb_hexwave.h hexwave_init integer overflow
A vulnerability was detected in Nothings stb up to 2c980bb59875b0d32144a71867fbdebb2f77cd20. The impacted element is the function hexwave_init in the library stb_hexwave.h. Performing a manipulation of the argument width/oversample results in integer overflow…