# CVE-2022-4996

## Summary

- **CVE ID:** CVE-2022-4996
- **Severity:** MEDIUM
- **CVSS Score:** 6.9 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P)
- **CWE:** CWE-1077
- **Published:** Aug 19, 2026
- **Last Modified:** Aug 21, 2026

## Description

A flaw has been found in mruby 3.1.0. Affected is the function udiv of the file bigint.c. Executing a manipulation can lead to floating point comparison with incorrect operator. It is possible to launch the attack remotely. The exploit has been published and may be used. It is best practice to apply a patch to resolve this issue.

## Affected Products

- n/a — mruby (3.1.0)

## References

- [CNA](https://vuldb.com/vuln/391391)
- [CNA](https://vuldb.com/vuln/391391/cti)
- [CNA](https://vuldb.com/cve/CVE-2022-4996)
- [CNA](https://vuldb.com/submit/877513)
- [CNA](https://huntr.com/bounties/5a5092df-1699-4497-a8b2-38318bce0c4e)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.48%
- **EPSS Percentile:** 40.2

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._