Common Weakness Enumeration

CWE-681

Allowed

Incorrect Conversion between Numeric Types

Abstraction: Base · Status: Draft

When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.

138 vulnerabilities reference this CWE, most recent first.

CVE-2021-29539 (GCVE-0-2021-29539)

Vulnerability from cvelistv5 – Published: 2021-05-14 19:11 – Updated: 2024-08-03 22:11
VLAI
Title
Segfault in tf.raw_ops.ImmutableConst
Summary
TensorFlow is an end-to-end open source platform for machine learning. Calling `tf.raw_ops.ImmutableConst`(https://www.tensorflow.org/api_docs/python/tf/raw_ops/ImmutableConst) with a `dtype` of `tf.resource` or `tf.variant` results in a segfault in the implementation as code assumes that the tensor contents are pure scalars. We have patched the issue in 4f663d4b8f0bec1b48da6fa091a7d29609980fa4 and will release TensorFlow 2.5.0 containing the patch. TensorFlow nightly packages after this commit will also have the issue resolved. If using `tf.raw_ops.ImmutableConst` in code, you can prevent the segfault by inserting a filter for the `dtype` argument.
CWE
  • CWE-681 - Incorrect Conversion between Numeric Types
References
Impacted products
Vendor Product Version
tensorflow tensorflow Affected: < 2.1.4
Affected: >= 2.2.0, < 2.2.3
Affected: >= 2.3.0, < 2.3.3
Affected: >= 2.4.0, < 2.4.2
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Show details on NVD website

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CVE-2021-27478 (GCVE-0-2021-27478)

Vulnerability from cvelistv5 – Published: 2022-05-12 19:17 – Updated: 2025-04-16 16:22
VLAI
Title
EIPStackGroup OpENer Ethernet/IP Incorrect Conversion between Numeric Types
Summary
A specifically crafted packet sent by an attacker to EIPStackGroup OpENer EtherNet/IP commits and versions prior to Feb 10, 2021 may cause a denial-of-service condition.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-04-16 15:56 UTC
CWE
  • CWE-681 - Incorrect Conversion between Numeric Types
References
Impacted products
Vendor Product Version
EIPStackGroup OpENer EtherNet/IP Affected: unspecified , < Feb 10, 2021 (custom)
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Show details on NVD website

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CVE-2021-3444 (GCVE-0-2021-3444)

Vulnerability from cvelistv5 – Published: 2021-03-23 17:45 – Updated: 2024-09-16 17:27
VLAI
Title
Linux kernel bpf verifier incorrect mod32 truncation
Summary
The bpf verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker with the ability to load bpf programs could use this gain out-of-bounds reads in kernel memory leading to information disclosure (kernel memory), and possibly out-of-bounds writes that could potentially lead to code execution. This issue was addressed in the upstream kernel in commit 9b00f1b78809 ("bpf: Fix truncation handling for mod32 dst reg wrt zero") and in Linux stable kernels 5.11.2, 5.10.19, and 5.4.101.
CWE
  • CWE-681 - Incorrect Conversion between Numeric Types
Impacted products
Vendor Product Version
Linux kernel Affected: trunk , < 5.12-rc1 (custom)
Affected: 5.11 , < 5.11.2 (custom)
Affected: 5.10 , < 5.10.19 (custom)
Affected: 5.4 , < 5.4.101 (custom)
Create a notification for this product.
Date Public
2021-03-23 00:00
Show details on NVD website

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CVE-2020-28588 (GCVE-0-2020-28588)

Vulnerability from cvelistv5 – Published: 2021-05-10 18:54 – Updated: 2024-08-04 16:40
VLAI
Summary
An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.
CWE
  • CWE-681 - Incorrect Conversion between Numeric Types
References
Impacted products
Vendor Product Version
n/a Linux Kernel Affected: Linux Kernel v5.10-rc4,Linux Kernel v5.4.66,Linux Kernel v5.9.8
Show details on NVD website

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CVE-2020-15225 (GCVE-0-2020-15225)

Vulnerability from cvelistv5 – Published: 2021-04-29 00:00 – Updated: 2024-08-04 13:08
VLAI
Title
Denial of Service vulnerability in django-filter
Summary
django-filter is a generic system for filtering Django QuerySets based on user selections. In django-filter before version 2.4.0, automatically generated `NumberFilter` instances, whose value was later converted to an integer, were subject to potential DoS from maliciously input using exponential format with sufficiently large exponents. Version 2.4.0+ applies a `MaxValueValidator` with a a default `limit_value` of 1e50 to the form field used by `NumberFilter` instances. In addition, `NumberFilter` implements the new `get_max_validator()` which should return a configured validator instance to customise the limit, or else `None` to disable the additional validation. Users may manually apply an equivalent validator if they are not able to upgrade.
CWE
  • CWE-681 - Incorrect Conversion between Numeric Types
Impacted products
Show details on NVD website

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CVE-2020-4032 (GCVE-0-2020-4032)

Vulnerability from cvelistv5 – Published: 2020-06-22 00:00 – Updated: 2024-08-04 07:52
VLAI
Title
Integer casting vulnerability in `update_recv_secondary_order` in FreeRDP
Summary
In FreeRDP before version 2.1.2, there is an integer casting vulnerability in update_recv_secondary_order. All clients with +glyph-cache /relax-order-checks are affected. This is fixed in version 2.1.2.
CWE
  • CWE-681 - Incorrect Conversion between Numeric Types
Impacted products
Vendor Product Version
FreeRDP FreeRDP Affected: < 2.1.2
Create a notification for this product.
Show details on NVD website

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CVE-2019-14842 (GCVE-0-2019-14842)

Vulnerability from cvelistv5 – Published: 2019-11-26 15:01 – Updated: 2024-08-05 00:26
VLAI
Summary
Structured reply is a feature of the newstyle NBD protocol allowing the server to send a reply in chunks. A bounds check which was supposed to test for chunk offsets smaller than the beginning of the request did not work because of signed/unsigned confusion. If one of these chunks contains a negative offset then data under control of the server is written to memory before the read buffer supplied by the client. If the read buffer is located on the stack then this allows the stack return address from nbd_pread() to be trivially modified, allowing arbitrary code execution under the control of the server. If the buffer is located on the heap then other memory objects before the buffer can be overwritten, which again would usually lead to arbitrary code execution.
CWE
References
Impacted products
Vendor Product Version
[UNKNOWN] libnbd Affected: 1.0.3
Create a notification for this product.
Show details on NVD website

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CVE-2019-10203 (GCVE-0-2019-10203)

Vulnerability from cvelistv5 – Published: 2019-11-22 12:01 – Updated: 2024-08-04 22:17
VLAI
Summary
PowerDNS Authoritative daemon , pdns versions 4.0.x before 4.0.9, 4.1.x before 4.1.11, exiting when encountering a serial between 2^31 and 2^32-1 while trying to notify a slave leads to DoS.
CWE
References
Impacted products
Vendor Product Version
Red Hat pdns Affected: pdns versions 4.0.x before 4.0.9, 4.1.x before 4.1.11
Create a notification for this product.
Show details on NVD website

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GHSA-25VF-27MM-C4FH

Vulnerability from github – Published: 2022-05-01 18:21 – Updated: 2024-02-02 03:30
VLAI
Details

Integer signedness error in the Networking component in Apple Mac OS X 10.4 through 10.4.10 allows local users to execute arbitrary code via a crafted AppleTalk message with a negative value, which satisfies a signed comparison during mbuf allocation but is later interpreted as an unsigned value, which triggers a heap-based buffer overflow.

Show details on source website

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      "url": "http://securitytracker.com/id?1018950"
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      "url": "http://www.securityfocus.com/bid/26444"
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GHSA-2CRV-PXJ9-66X8

Vulnerability from github – Published: 2026-08-14 15:32 – Updated: 2026-08-14 15:32
VLAI
Details

A flaw was found in Undertow, an HTTP server, within its HTTP response header writing path. The writeString() method performs a silent narrowing cast from 16-bit Unicode characters to 8-bit bytes when writing HTTP response header values. A remote attacker can exploit this by supplying specific Unicode characters in user-controlled input that an application places into response headers. This can lead to the truncation of these characters into ASCII control characters or special symbols, potentially resulting in limited integrity impact or information disclosure if the application does not properly sanitize user input.

Show details on source website

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Mitigation
Implementation

Avoid making conversion between numeric types. Always check for the allowed ranges.

No CAPEC attack patterns related to this CWE.