{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-85068","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-09-02T21:21:01.775Z","datePublished":"2026-11-05T22:57:24.731Z","dateUpdated":"2026-11-05T22:57:24.731Z"},"containers":{"cna":{"title":"NUT blazer_usb ippon_command stack info-leak via unzeroed char tmp[64] in OUT-direction usb_control_msg","problemTypes":[{"descriptions":[{"cweId":"CWE-457","lang":"en","description":"CWE-457: Use of Uninitialized Variable","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"PHYSICAL","availabilityImpact":"NONE","baseScore":2.4,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/networkupstools/nut/security/advisories/GHSA-fjxc-2vpv-mqc8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/networkupstools/nut/security/advisories/GHSA-fjxc-2vpv-mqc8"},{"name":"https://github.com/networkupstools/nut/pull/3529","tags":["x_refsource_MISC"],"url":"https://github.com/networkupstools/nut/pull/3529"},{"name":"https://github.com/networkupstools/nut/commit/30d56d4282f823949b40763d5c76461c7dd107b3","tags":["x_refsource_MISC"],"url":"https://github.com/networkupstools/nut/commit/30d56d4282f823949b40763d5c76461c7dd107b3"}],"affected":[{"vendor":"networkupstools","product":"nut","versions":[{"version":">= 2.4.2, <= 2.8.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-11-05T22:57:24.731Z"},"descriptions":[{"lang":"en","value":"Network UPS Tools is a collection of programs which provide a common interface for monitoring and administering UPS, PDU and SCD hardware. From 2.4.2 through 2.8.5, ippon_command in drivers/blazer_usb.c partially initializes char tmp[64] with a short Megatec status query and then passes a fixed eight-byte chunk to usb_control_msg. A malicious firmware-controlled USB device presenting the Mustek Powermust VID 0x06da and Mustek Powermust PID 0x0003 matches blazer_usb_id, selects ippon_subdriver, and can receive the uninitialized trailing stack bytes during normal polling. The disclosure is bounded and read-only, requires physical or supply-chain access to the USB bus, and has no established integrity or availability impact. This issue is scheduled to be fixed in version 2.8.6."}],"source":{"advisory":"GHSA-fjxc-2vpv-mqc8","discovery":"UNKNOWN"}}}}