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.

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History

Fri, 21 Aug 2026 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 20 Aug 2026 00:00:00 +0000

Type Values Removed Values Added
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.
Title mruby bigint.c udiv floating point comparison with incorrect operator
First Time appeared Mruby
Mruby mruby
Weaknesses CWE-1077
CPEs cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*
Vendors & Products Mruby
Mruby mruby
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 6.9, 'vector': '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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-08-21T16:46:40.492Z

Reserved: 2026-08-17T18:46:01.063Z

Link: CVE-2022-4996

cve-icon Vulnrichment

Updated: 2026-08-21T16:46:36.005Z

cve-icon NVD

Status : Deferred

Published: 2026-08-20T00:16:50.980

Modified: 2026-08-21T17:16:26.430

Link: CVE-2022-4996

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T08:00:03Z

Weaknesses