CVE-2022-4996mruby bigint.c udiv floating point comparison with incorrect operator
Updated under an hour ago ()
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It affects n/a mruby. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)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
- Weakness (CWE)
- CWE-1077
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Aug 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
n/a mruby mruby:mruby | 3.1.0 | CNA record |
References
- https://vuldb.com/vuln/391391vdb-entry, technical-description
- https://vuldb.com/vuln/391391/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2022-4996third-party-advisory
- https://vuldb.com/submit/877513third-party-advisory
- https://huntr.com/bounties/5a5092df-1699-4497-a8b2-38318bce0c4eexploit
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.