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Weakness (CWE)

CWE-134: Use of Externally-Controlled Format String

Base Draft

The product uses a function that accepts a format string as an argument, but the format string originates from an external source.

How to prevent it (3 mitigations)

  1. Requirements

    Choose a language that is not subject to this flaw.

  2. Implementation

    Ensure that all format string functions are passed a static string which cannot be controlled by the user, and that the proper number of arguments are always sent to that function as well. If at all possible, use functions that do not support the %n operator in format strings. [REF-116] [REF-117]

  3. Build and Compilation

    Run compilers and linkers with high warning levels, since they may detect incorrect usage.

Source: MITRE CWE-134

All Critical High Medium Low Exploited only Public exploit

2 results · Clear filters · Feed

  • Medium 6.6
    CVE-2026-3008 Public exploit

    Vulnerability in Notepad++

    Successful exploitation of the string injection vulnerability could allow an attacker to obtain memory address information or crash the application.

    Notepad++ Notepad++
  • Medium 4.5
    CVE-2019-11287 Public exploit

    RabbitMQ Web Management Plugin DoS via heap overflow

    Pivotal RabbitMQ, versions 3.7.x prior to 3.7.21 and 3.8.x prior to 3.8.1, and RabbitMQ for Pivotal Platform, 1.16.x versions prior to 1.16.7 and 1.17.x versions prior to 1.17.4, contain a web management plugin that is vulnerable to a denial of service attack…

    Pivotal RabbitMQ RabbitMQ for Pivotal Platform rabbitmq-server Debian Ubuntu Hex