{"id":"CVE-2022-4996","state":"PUBLISHED","title":"mruby bigint.c udiv floating point comparison with incorrect operator","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.","publishedAt":"2026-08-19T23:45:07.775Z","updatedAt":"2026-08-21T16:46:40.492Z","severity":{"score":6.9,"label":"Medium","version":"4.0","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","source":"VulDB"},"assigner":"VulDB","products":["n/a mruby"],"affected":[{"vendor":"n/a","product":"mruby","versions":[{"version":"3.1.0","status":"affected"}],"cpes":["cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*"]}],"references":["https://vuldb.com/vuln/391391","https://vuldb.com/vuln/391391/cti","https://vuldb.com/cve/CVE-2022-4996","https://vuldb.com/submit/877513","https://huntr.com/bounties/5a5092df-1699-4497-a8b2-38318bce0c4e"],"weaknesses":["CWE-1077"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/4xxx/CVE-2022-4996.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-4996","state":"PUBLISHED","datePublished":"2026-08-19T23:45:07.775Z","dateUpdated":"2026-08-21T16:46:40.492Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-17T18:46:01.063Z"},"containers":{"cna":{"title":"mruby bigint.c udiv floating point comparison with incorrect operator","descriptions":[{"lang":"en","value":"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":[{"vendor":"n/a","product":"mruby","versions":[{"version":"3.1.0","status":"affected"}],"cpes":["cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*"]}],"references":[{"url":"https://vuldb.com/vuln/391391","name":"VDB-391391 | mruby bigint.c udiv floating point comparison with incorrect operator","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/391391/cti","name":"VDB-391391 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2022-4996","name":"CVE-2022-4996 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/877513","name":"Submit #877513 | mruby 3.1.0 Floating Point Exception","tags":["third-party-advisory"]},{"url":"https://huntr.com/bounties/5a5092df-1699-4497-a8b2-38318bce0c4e","tags":["exploit"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.9,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1077","type":"CWE","lang":"en","description":"Floating Point Comparison with Incorrect Operator"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-19T23:45:07.775Z"},"timeline":[{"time":"2026-08-17T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-17T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-17T20:51:06.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"jacky2001114 (VulDB User)","type":"reporter"}],"tags":["x_open-source"],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T16:46:17.108858Z","id":"CVE-2022-4996","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-21T16:46:40.492Z"}}]}}}