{"affected":[{"affectedData":[{"product":"fastchat","vendor":"lm-sys","versions":[{"status":"affected","version":"0.2.0"},{"status":"affected","version":"0.2.1"},{"status":"affected","version":"0.2.2"},{"status":"affected","version":"0.2.3"},{"status":"affected","version":"0.2.4"},{"status":"affected","version":"0.2.5"},{"status":"affected","version":"0.2.6"},{"status":"affected","version":"0.2.7"},{"status":"affected","version":"0.2.8"},{"status":"affected","version":"0.2.9"},{"status":"affected","version":"0.2.10"},{"status":"affected","version":"0.2.11"},{"status":"affected","version":"0.2.12"},{"status":"affected","version":"0.2.13"},{"status":"affected","version":"0.2.14"},{"status":"affected","version":"0.2.15"},{"status":"affected","version":"0.2.16"},{"status":"affected","version":"0.2.17"},{"status":"affected","version":"0.2.18"},{"status":"affected","version":"0.2.19"},{"status":"affected","version":"0.2.20"},{"status":"affected","version":"0.2.21"},{"status":"affected","version":"0.2.22"},{"status":"affected","version":"0.2.23"},{"status":"affected","version":"0.2.24"},{"status":"affected","version":"0.2.25"},{"status":"affected","version":"0.2.26"},{"status":"affected","version":"0.2.27"},{"status":"affected","version":"0.2.28"},{"status":"affected","version":"0.2.29"},{"status":"affected","version":"0.2.30"},{"status":"affected","version":"0.2.31"},{"status":"affected","version":"0.2.32"},{"status":"affected","version":"0.2.33"},{"status":"affected","version":"0.2.34"},{"status":"affected","version":"0.2.35"},{"status":"affected","version":"0.2.36"}]}],"source":"cna@vuldb.com"}],"cveTags":[],"descriptions":[{"lang":"en","value":"A vulnerability classified as critical was found in lm-sys fastchat up to 0.2.36. This vulnerability affects the function split_files/apply_delta_low_cpu_mem of the file fastchat/model/apply_delta.py. The manipulation leads to deserialization. An attack has to be approached locally."},{"lang":"es","value":"Se detectó una vulnerabilidad crítica en lm-sys fastchat hasta la versión 0.2.36. Esta vulnerabilidad afecta la función split_files/apply_delta_low_cpu_mem del archivo fastchat/model/apply_delta.py. La manipulación provoca la deserialización. El ataque debe abordarse localmente."}],"id":"CVE-2025-3677","lastModified":"2026-06-17T09:20:27.800","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"LOCAL","authentication":"SINGLE","availabilityImpact":"PARTIAL","baseScore":4.3,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:L/AC:L/Au:S/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":3.1,"impactScore":6.4,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"cna@vuldb.com","type":"Secondary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},"exploitabilityScore":1.8,"impactScore":3.4,"source":"cna@vuldb.com","type":"Secondary"}],"cvssMetricV40":[{"cvssData":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","availabilityRequirement":"NOT_DEFINED","baseScore":4.8,"baseSeverity":"MEDIUM","confidentialityRequirement":"NOT_DEFINED","exploitMaturity":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnerabilityResponseEffort":"NOT_DEFINED"},"source":"cna@vuldb.com","type":"Secondary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2025-3677","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2025-04-16T19:30:12.404331Z","version":"2.0.3"}}]},"published":"2025-04-16T09:15:28.273","references":[{"source":"cna@vuldb.com","url":"https://github.com/lm-sys/FastChat/issues/3713"},{"source":"cna@vuldb.com","url":"https://vuldb.com/?ctiid.304966"},{"source":"cna@vuldb.com","url":"https://vuldb.com/?id.304966"},{"source":"cna@vuldb.com","url":"https://vuldb.com/?submit.552755"}],"sourceIdentifier":"cna@vuldb.com","vulnStatus":"Deferred","weaknesses":[{"description":[{"lang":"en","value":"CWE-20"},{"lang":"en","value":"CWE-502"}],"source":"cna@vuldb.com","type":"Secondary"}]}