{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-7762", "assignerOrgId": "4ac701fe-44e9-4bcd-9585-dd6449257611", "state": "PUBLISHED", "assignerShortName": "Bugcrowd", "dateReserved": "2026-05-04T05:02:07.918Z", "datePublished": "2026-06-05T01:36:20.993Z", "dateUpdated": "2026-06-05T20:19:29.920Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "4ac701fe-44e9-4bcd-9585-dd6449257611", "shortName": "Bugcrowd", "dateUpdated": "2026-06-05T01:36:20.993Z"}, "title": "Heap buffer overflow in dot11ah.ko S1G Capabilities IE processing", "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-122 Heap-based Buffer Overflow"}]}], "affected": [{"vendor": "Morse Micro", "product": "HaLowLink 2", "versions": [{"version": "0", "status": "affected", "lessThan": "2.11.13", "versionType": "semver"}], "defaultStatus": "unaffected"}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:morsemicro:halow_link_2:*:*:*:*:*:*:*:*", "versionStartIncluding": "0", "versionEndExcluding": "2.11.13"}]}]}], "descriptions": [{"lang": "en", "value": "A heap-based buffer overflow vulnerability in the dot11ah.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.13 allows an unauthenticated attacker within radio range to cause a Denial of Service (kernel panic) or potentially achieve Remote Code Execution via a crafted 802.11ah beacon or probe response frame containing a malformed S1G Capabilities Information Element (IE element ID 0xD9). The function morse_dot11ah_find_s1g_caps_for_bssid() uses the IE length field directly as the size argument to memcpy without validating it against the 15-byte destination buffer. An attacker can supply up to 255 bytes, causing an overflow of up to 240 bytes of attacker-controlled data into adjacent kernel heap memory. The vulnerability is triggerable during normal scanning without authentication, association, or user interaction."}], "references": [{"url": "https://www.morsemicro.com/security-advisories/MM-SA-2026-002"}]}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-05T20:19:09.789917Z", "id": "CVE-2026-7762", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-05T20:19:29.920Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "A heap-based buffer overflow vulnerability in the dot11ah.ko HaLow Wi-Fi kernel driver in Morse Micro HaLowLink 2 software versions prior to 2.11.13 allows an unauthenticated attacker within radio range to cause a Denial of Service (kernel panic) or potentially achieve Remote Code Execution via a crafted 802.11ah beacon or probe response frame containing a malformed S1G Capabilities Information Element (IE element ID 0xD9). The function morse_dot11ah_find_s1g_caps_for_bssid() uses the IE length field directly as the size argument to memcpy without validating it against the 15-byte destination buffer. An attacker can supply up to 255 bytes, causing an overflow of up to 240 bytes of attacker-controlled data into adjacent kernel heap memory. The vulnerability is triggerable during normal scanning without authentication, association, or user interaction."}], "id": "CVE-2026-7762", "lastModified": "2026-06-05T21:16:30.907", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-06-05T02:17:14.510", "references": [{"source": "4ac701fe-44e9-4bcd-9585-dd6449257611", "url": "https://www.morsemicro.com/security-advisories/MM-SA-2026-002"}], "sourceIdentifier": "4ac701fe-44e9-4bcd-9585-dd6449257611", "vulnStatus": "Awaiting Analysis"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.11.13)"}}], "enrichment": {"confidence": 96.0, "confidence_source": "matching", "scores": [{"score": 96.0, "source": "matching"}]}, "original": {"product": "HaLowLink 2", "source": "cna", "vendor": "Morse Micro"}, "product": "halow_link_2", "vendor": "morsemicro"}], "created": "2026-06-05T04:45:32.037676+00:00", "updated": "2026-06-05T22:30:06.171934+00:00", "vendors": ["morsemicro", "morsemicro$PRODUCT$halow_link_2"], "weaknesses": ["CWE-122", "CWE-119"]}