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CVE-2022-4996

mruby bigint.c udiv floating point comparison with incorrect operator

MEDIUM
5.3
CVSS Score
Published: August 19, 2026 at 11:45 PM UTC
Updated: August 21, 2026 at 05:16 PM UTC
1 product affected across 1 vendorMruby

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.6%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/391391
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/391391/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2022-4996
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/877513
Exploit
Source: cverecord
https://huntr.com/bounties/5a5092df-1699-4497-a8b2-38318bce0c4e

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-1077

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