{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-84698", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-09-01T23:24:25.508Z", "datePublished": "2026-09-02T00:37:53.694Z", "dateUpdated": "2026-09-02T00:37:53.694Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-09-02T00:37:53.694Z"}, "datePublic": "2026-08-25T00:00:00.000Z", "title": "PX4 Autopilot sd_bench Heap Buffer Overflow via Block Size", "descriptions": [{"lang": "en", "value": "PX4 Autopilot contains a heap buffer overflow vulnerability in the sd_bench command that writes a four-byte block number into a user-supplied sized allocation. Attackers can invoke sd_bench with a block size below four bytes to overflow the heap buffer and potentially execute code or crash the system."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Out-of-bounds Write", "cweId": "CWE-787", "type": "CWE"}]}], "affected": [{"vendor": "PX4", "product": "PX4-Autopilot", "defaultStatus": "unaffected", "packageURL": "pkg:github/PX4/PX4-Autopilot", "collectionURL": "https://github.com/PX4/PX4-Autopilot", "repo": "https://github.com/PX4/PX4-Autopilot", "versions": [{"version": "0", "lessThanOrEqual": "1.17.0", "status": "affected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:px4:autopilot:*:*:*:*:*:*:*:*", "versionEndIncluding": "1.17.0"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "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:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/PX4/PX4-Autopilot", "tags": ["product"]}, {"url": "https://github.com/PX4/PX4-Autopilot/issues/28373", "tags": ["issue-tracking"]}, {"url": "https://github.com/PX4/PX4-Autopilot/blob/v1.17.0/src/systemcmds/sd_bench/sd_bench.cpp", "tags": ["technical-description"]}, {"name": "VulnCheck Advisory: PX4 Autopilot sd_bench Heap Buffer Overflow via Block Size", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/px4-autopilot-sd-bench-heap-buffer-overflow-via-block-size"}], "credits": [{"lang": "en", "value": "Xiaoyang Chen", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.17.0]"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "PX4-Autopilot", "source": "cna", "vendor": "PX4"}, "product": "autopilot", "vendor": "px4"}], "created": "2026-09-02T03:00:12.905157+00:00", "updated": "2026-09-02T04:00:09.240983+00:00", "vendors": ["px4", "px4$PRODUCT$autopilot"]}