{"id":"CVE-2021-48007","state":"PUBLISHED","title":"PocketMine-MP before 3.18.1 Denial of Service via MovePlayerPacket","description":"PocketMine-MP versions before 3.18.1 fail to validate NaN or INF values in MovePlayerPacket position and rotation fields. Malicious clients can send crafted movement packets with invalid floating-point values to crash servers through unhandled mathematical operations or prevent clients from rendering other players.","publishedAt":"2026-09-06T12:00:23.482Z","updatedAt":"2026-10-08T15:20:53.249Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"VulnCheck"},"assigner":"VulnCheck","products":["pmmp PocketMine-MP"],"affected":[{"vendor":"pmmp","product":"PocketMine-MP","packageURL":"pkg:composer/pocketmine/pocketmine-mp","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.18.1","versionType":"semver"},{"version":"3.18.1","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-fm35-jgg3-3grx","https://github.com/pmmp/PocketMine-MP/commit/fb20bb38327b4c08ee3976640cd0dd547388a638","https://www.vulncheck.com/advisories/pocketmine-mp-before-3.18.1-denial-of-service-via-moveplayerpacket"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T19:49:22.269Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/48xxx/CVE-2021-48007.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-48007","state":"PUBLISHED","datePublished":"2026-09-06T12:00:23.482Z","dateUpdated":"2026-10-08T15:20:53.249Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-05T21:04:52.479Z"},"containers":{"cna":{"title":"PocketMine-MP before 3.18.1 Denial of Service via MovePlayerPacket","descriptions":[{"lang":"en","value":"PocketMine-MP versions before 3.18.1 fail to validate NaN or INF values in MovePlayerPacket position and rotation fields. Malicious clients can send crafted movement packets with invalid floating-point values to crash servers through unhandled mathematical operations or prevent clients from rendering other players."}],"affected":[{"vendor":"pmmp","product":"PocketMine-MP","packageURL":"pkg:composer/pocketmine/pocketmine-mp","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.18.1","versionType":"semver"},{"version":"3.18.1","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/pmmp/PocketMine-MP/security/advisories/GHSA-fm35-jgg3-3grx","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-fm35-jgg3-3grx)"},{"url":"https://github.com/pmmp/PocketMine-MP/commit/fb20bb38327b4c08ee3976640cd0dd547388a638","tags":["patch"],"name":"Patch Commit"},{"url":"https://www.vulncheck.com/advisories/pocketmine-mp-before-3.18.1-denial-of-service-via-moveplayerpacket","name":"VulnCheck Advisory: PocketMine-MP before 3.18.1 Denial of Service via MovePlayerPacket","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":7.1,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","lang":"en","description":"Improper Input Validation","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-08T15:20:53.249Z"},"datePublic":"2021-05-19T00:00:00.000Z","tags":["unsupported-when-assigned"],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-09T13:56:10.359260Z","id":"CVE-2021-48007","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-09T13:56:35.481Z"}}]}}}