---
title: "CWE-189: Numeric Errors"
url: https://radicalnotion.ai/cwe/cwe-189
type: cwe
description: "Weaknesses in this category are related to improper calculation or conversion of numbers."
updated: 2026-05-01
source: RadicalNotion.AI
license: CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
---

# CWE-189: Numeric Errors

- **Status:** Draft
- **CVEs with this as primary weakness:** 1,191
- **Of those, in CISA KEV:** 1
- **New in 2026:** 4
- **CWE catalog version:** 4.20

## Description

Weaknesses in this category are related to improper calculation or conversion of numbers.

## Real CVEs with this weakness (sample of 12 of 1,191)

| CVE | Title | Severity | CVSS | EPSS | CISA KEV | Published |
| --- | --- | --- | --- | --- | --- | --- |
| CVE-2013-2094 | - | high | 8.6 | - | Yes | 2013-05-14 |
| CVE-2015-8396 | - | critical | 10.0 | - | No | 2016-01-12 |
| CVE-2015-7205 | - | critical | 10.0 | - | No | 2015-12-16 |
| CVE-2014-7917 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2015-3836 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2014-7915 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2015-6575 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2015-3864 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2015-3829 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2014-7916 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2015-3834 | - | critical | 10.0 | - | No | 2015-10-01 |
| CVE-2015-1539 | - | critical | 10.0 | - | No | 2015-10-01 |

## Frequently asked questions

### What is CWE-189?

Weaknesses in this category are related to improper calculation or conversion of numbers.

### What CVEs are caused by CWE-189?

1,191 recorded CVEs are attributed to CWE-189, including CVE-2013-2094, CVE-2015-8396 and CVE-2015-7205. 1 is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.

### Is CWE-189 actively exploited?

Yes. 1 CWE-189 vulnerability is in CISA's KEV catalog of actively exploited flaws, out of 1,191 recorded CVEs.

Primary source: [MITRE CWE](https://cwe.mitre.org/data/definitions/189.html)

---

Source: [RadicalNotion.AI](https://radicalnotion.ai/cwe/cwe-189). Licensed CC BY-NC 4.0; attribute RadicalNotion.AI and link the source page when you reuse this data.