{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-23747", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-01-15T18:42:20.937Z", "datePublished": "2026-02-26T17:30:13.495Z", "dateUpdated": "2026-07-14T15:53:36.335Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-07-14T15:53:36.335Z" }, "title": "Golioth Firmware SDK < 0.22.0 Payload Utils Stack-based Buffer Overflow", "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Golioth Firmware SDK version 0.10.0 prior to 0.22.0, fixed in commit 48f521b, contain a stack-based buffer overflow in Payload Utils. The golioth_payload_as_int() and golioth_payload_as_float() helpers copy network-supplied payload data into fixed-size stack buffers using memcpy() with a length derived from payload_size. The only length checks are guarded by assert(); in release builds, the asserts are compiled out and memcpy() may copy an unbounded payload_size. Payloads larger than 12 bytes (int) or 32 bytes (float) can overflow the stack, resulting in a crash/denial of service. This is reachable via LightDB State on_payload with a malicious server or MITM." } ], "value": "Golioth Firmware SDK version 0.10.0 prior to 0.22.0, fixed in commit 48f521b, contain a stack-based buffer overflow in Payload Utils. The golioth_payload_as_int() and golioth_payload_as_float() helpers copy network-supplied payload data into fixed-size stack buffers using memcpy() with a length derived from payload_size. The only length checks are guarded by assert(); in release builds, the asserts are compiled out and memcpy() may copy an unbounded payload_size. Payloads larger than 12 bytes (int) or 32 bytes (float) can overflow the stack, resulting in a crash/denial of service. This is reachable via LightDB State on_payload with a malicious server or MITM." } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-121", "description": "CWE-121 Stack-based Buffer Overflow", "lang": "en", "type": "CWE" } ] } ], "affected": [ { "defaultStatus": "unaffected", "packageURL": "pkg:github/golioth/golioth-firmware-sdk", "product": "Firmware SDK", "repo": "https://github.com/golioth/golioth-firmware-sdk", "vendor": "Golioth", "versions": [ { "lessThan": "0.22.0", "status": "affected", "version": "0.10.0", "versionType": "semver" }, { "status": "unaffected", "version": "48f521bcc0187ada2b9cbdad31dc380e6c7b7332", "versionType": "git" } ] } ], "metrics": [ { "cvssV4_0": { "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 6.3, "baseSeverity": "MEDIUM", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] }, { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.7, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "references": [ { "tags": [ "technical-description" ], "url": "https://secmate.dev/disclosures/SECMATE-2025-0015" }, { "tags": [ "technical-description", "exploit" ], "url": "https://blog.secmate.dev/posts/golioth-vulnerabilities-disclosure/" }, { "tags": [ "release-notes" ], "url": "https://github.com/golioth/golioth-firmware-sdk/releases/tag/v0.22.0" }, { "tags": [ "patch" ], "url": "https://github.com/golioth/golioth-firmware-sdk/commit/48f521bcc0187ada2b9cbdad31dc380e6c7b7332" }, { "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/golioth-firmware-sdk-payload-utils-stack-based-buffer-overflow" } ], "credits": [ { "lang": "en", "type": "finder", "value": "SecMate (https://secmate.dev)" } ], "x_generator": { "engine": "Vulnogram 0.5.0" }, "source": { "discovery": "EXTERNAL" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-02-27T16:07:17.351702Z", "id": "CVE-2026-23747", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-27T16:07:30.232Z" } } ] } }