Common Weakness Enumeration

CWE-190

Allowed

Integer Overflow or Wraparound

Abstraction: Base · Status: Stable

API response cwe.mitre.org

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.

1472 vulnerabilities reference this CWE, most recent first.

CVE-2026-107730 (GCVE-0-2026-107730)

Vulnerability from cvelistv5 – Published: 2026-10-08 22:19 – Updated: 2026-10-09 15:06
VLAI
Title
SumatraPDF: Signed integer overflow in the LIT header parsing causes invalid-pointer read
Summary
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 values make that aggregate calculation overflow to a negative value, pointer construction reaches an invalid read in LitU32(), causing deterministic application termination. The supplied evidence does not demonstrate code execution, information disclosure, arbitrary read, or integrity impact. No fixed version is available as of this review.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 15:01 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
sumatrapdfreader sumatrapdf Affected: <= 3.7.0.22298
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CVE-2026-107446 (GCVE-0-2026-107446)

Vulnerability from cvelistv5 – Published: 2026-10-08 03:37 – Updated: 2026-10-08 17:55
VLAI
Summary
containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple overlaybd-backed containers.
Severity
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 17:55 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
mitre CNA
References
Impacted products
Vendor Product Version
containerd overlaybd Affected: 0 , ≤ 1.0.18 (semver)
Create a notification for this product.
Show details on NVD website
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CVE-2026-107348 (GCVE-0-2026-107348)

Vulnerability from cvelistv5 – Published: 2026-10-14 17:34 – Updated: 2026-10-16 20:11
VLAI
Title
Integer overflow causes an infinite loop in message buffer growth in PgBouncer
Summary
Integer overflow in the message buffer growth logic (mbuf_make_room) in PgBouncer 1.21.0 through 1.26.0 allows a remote attacker to cause a denial of service when max_packet_size is configured above 2147483648. A packet header declaring a length above 2^31 makes the buffer size computation overflow, leaving the growth loop unable to terminate. Because PgBouncer serves all clients from a single process, this saturates a CPU core and stalls every pooled connection until the process is restarted. Since 1.23.0 the overflow is reachable before authentication with a five-byte packet header.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 20:11 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
Impacted products
Vendor Product Version
n/a PgBouncer Affected: 1.21.0 , < 1.26.1 (semver)
Credits
Thanks to Brian Cosgrove (@cosgroveb) for finding and reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-107324 (GCVE-0-2026-107324)

Vulnerability from cvelistv5 – Published: 2026-10-08 18:58 – Updated: 2026-10-08 19:31
VLAI
Title
Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver
Summary
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 terminate an unprotected application process, causing a denial of service. The driver's server-monitoring path contains panic recovery and is limited to server-selection failure.
Severity
8.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:31 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
mongodb CNA
References
Impacted products
Vendor Product Version
MongoDB Go Driver Affected: 1.0.0 , < 1.2.0 (semver)
Affected: 2.0.0 , < 2.9.0 (semver)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107224 (GCVE-0-2026-107224)

Vulnerability from cvelistv5 – Published: 2026-10-07 18:53 – Updated: 2026-10-07 19:30
VLAI
Title
Excelize: A Zip64 uncompressed-size of 2^63 panics OpenFile/OpenReader
Summary
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. ReadZipReader obtains UncompressedSize64 through FileInfo.Size and passes the wrapped negative value to readFile. When a crafted Zip64 entry declares an uncompressed size from 2^63 through 2^64-1 and the workbook is opened, the negative size bypasses unzip limits and reaches make as a negative capacity, allowing an attacker to panic during workbook opening. No fixed version is available as of this review.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 19:29 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-681 - Incorrect Conversion between Numeric Types
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
qax-os excelize Affected: >= 2.1.0, <= 2.11.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-107217 (GCVE-0-2026-107217)

Vulnerability from cvelistv5 – Published: 2026-10-07 18:26 – Updated: 2026-10-08 16:10
VLAI
Title
Excelize ColumnNameToNumber: int64 overflow yields an out-of-domain coordinate with nil error, causing negative slice index panic on r="0" rows
Summary
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 without detecting overflow, allowing an invalid long column name to wrap to zero with no error. ColumnNameToNumber accepts the overflowing name VGWQHXLSDVIKWV, after which checkSheetR0 and xlsxWorksheet.checkRow use the wrapped column value as an index. When a crafted worksheet uses an overflowing column name in a row normalized by checkSheetR0 or checkRow, the wrapped zero column becomes a negative slice index during worksheet normalization, allowing an attacker to panic and terminate the calling process. No fixed version is available as of this review.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 16:10 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-129 - Improper Validation of Array Index
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
qax-os excelize Affected: >= 2.0.0, <= 2.11.0
Affected: >= 1.1.0, <= 1.4.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-106574 (GCVE-0-2026-106574)

Vulnerability from cvelistv5 – Published: 2026-10-07 15:35 – Updated: 2026-10-07 16:17
VLAI
Title
ImageMagick: Heap Buffer Over-Write in distributed pixel cache server will result in a crash
Summary
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 buffer overwrite, crashing the server. This issue is fixed in version 7.1.2-31.
Severity
5.3 (Medium)
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 16:17 UTC
CWE
  • CWE-122 - Heap-based Buffer Overflow
  • CWE-125 - Out-of-bounds Read
  • CWE-131 - Incorrect Calculation of Buffer Size
  • CWE-190 - Integer Overflow or Wraparound
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: < 7.1.2-31
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-106571 (GCVE-0-2026-106571)

Vulnerability from cvelistv5 – Published: 2026-10-07 15:28 – Updated: 2026-10-07 17:04
VLAI
Title
ImageMagick: Heap Buffer Over-Write in GetVirtualPixels api will result in a crash
Summary
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 the server process. This issue is fixed in versions 6.9.13-56 and 7.1.2-31.
Severity
5.1 (Medium)
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-07 16:05 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
  • CWE-787 - Out-of-bounds Write
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: < 6.9.13-56
Affected: >= 7.0.0, < 7.1.2-31
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-105959 (GCVE-0-2026-105959)

Vulnerability from cvelistv5 – Published: 2026-10-16 11:53 – Updated: 2026-11-04 21:41
VLAI
Title
Spice-server: spice: heap buffer overflow via glz dictionary max_encoders integer truncation
Summary
A flaw was found in spice-server. The GLZ encoder dictionary restore path truncates a size_t allocation size to int when calling the malloc callback, allowing a malicious authenticated SPICE client during VM live migration to trigger a massive heap buffer overflow by sending a crafted max_encoders value in migration data.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 14:04 UTC
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
redhat CNA
References
Impacted products
Date Public
2026-10-08 11:00
Credits
Upstream acknowledges Tristan Madani (Talence Security) as the original reporter.
Show details on NVD website
To clipboard 

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CVE-2026-105923 (GCVE-0-2026-105923)

Vulnerability from cvelistv5 – Published: 2026-10-21 09:21 – Updated: 2026-10-29 19:10
VLAI
Title
Null-pointer dereference in QTriangulator reachable through VectorImage
Summary
A malicious SVG can trigger an integer overflow which in turn triggers a null-pointer dereference in VectorImage QML Type.
Severity
4 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/AU:N/R:U/RE:L/U:Green
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 19:10 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
  • CWE-190 - Integer Overflow or Wraparound
Assigner
Qt CNA
References
Impacted products
Vendor Product Version
qt Qt Affected: 6.8.0 , < 6.8.9 (python)
Affected: 6.9.0 , < 6.11.3 (python)
    cpe:2.3:a:qt:qt:*:*:*:*:*:*:*:*
    cpe:2.3:a:qt:qtbase:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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Mitigation
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.

Mitigation MIT-3
Requirements

Strategy: Language Selection

  • 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.
Mitigation MIT-4
Architecture and Design

Strategy: Libraries or Frameworks

  • 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]
Mitigation MIT-8
Implementation

Strategy: Input Validation

  • 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.
Mitigation MIT-36
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.
Mitigation MIT-15
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.

Mitigation MIT-26
Implementation

Strategy: Compilation or Build Hardening

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.

CAPEC-92: Forced Integer Overflow

This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.

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