{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-110958", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-10-15T09:30:59.165Z", "datePublished": "2026-10-15T15:30:18.031Z", "dateUpdated": "2026-10-15T18:34:20.350Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-10-15T15:30:18.031Z" }, "title": "Wavlink WN530HG4B api.cgi heap-based overflow", "problemTypes": [ { "descriptions": [ { "type": "CWE", "cweId": "CWE-122", "lang": "en", "description": "Heap-based Buffer Overflow" } ] }, { "descriptions": [ { "type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption" } ] } ], "affected": [ { "vendor": "Wavlink", "product": "WN530HG4B", "versions": [ { "version": "M30HG4B_V260724", "status": "affected" }, { "version": "2026-09-24-841a51c6d5_tclinux.bin", "status": "unaffected" } ], "cpes": [ "cpe:2.3:a:wavlink:wn530hg4b:*:*:*:*:*:*:*:*" ] } ], "descriptions": [ { "lang": "en", "value": "A vulnerability was found in Wavlink WN530HG4B M30HG4B_V260724. The impacted element is an unknown function of the file api.cgi. The manipulation results in heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been made public and could be used. Upgrading to version 2026-09-24-841a51c6d5_tclinux.bin is sufficient to resolve this issue. The affected component should be upgraded. The vendor confirms: \"We confirm the finding, and it has already been addressed. In the current firmware the api=info&client=app handler no longer builds a shell command: the login script is now invoked through an argument vector (execvp) instead of system(), and the client address is length-limited and null-checked.\"" } ], "metrics": [ { "cvssV4_0": { "version": "4.0", "baseScore": 10, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P", "baseSeverity": "CRITICAL" } }, { "cvssV3_1": { "version": "3.1", "baseScore": 10, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C", "baseSeverity": "CRITICAL" } }, { "cvssV3_0": { "version": "3.0", "baseScore": 10, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C", "baseSeverity": "CRITICAL" } }, { "cvssV2_0": { "version": "2.0", "baseScore": 10, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:OF/RC:C" } } ], "timeline": [ { "time": "2026-10-15T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed" }, { "time": "2026-10-15T02:00:00.000Z", "lang": "en", "value": "VulDB entry created" }, { "time": "2026-10-15T11:36:12.000Z", "lang": "en", "value": "VulDB entry last update" } ], "credits": [ { "lang": "en", "value": "aissac (VulDB User)", "type": "reporter" }, { "lang": "en", "value": "VulDB CNA Team", "type": "coordinator" } ], "references": [ { "url": "https://vuldb.com/vuln/420571", "name": "VDB-420571 | Wavlink WN530HG4B api.cgi heap-based overflow", "tags": [ "vdb-entry" ] }, { "url": "https://vuldb.com/vuln/420571/cti", "name": "VDB-420571 | CTI Indicators (IOB, IOC, IOA)", "tags": [ "signature", "permissions-required" ] }, { "url": "https://vuldb.com/cve/CVE-2026-110958", "name": "CVE-2026-110958 | CVE Analysis and Report", "tags": [ "third-party-advisory" ] }, { "url": "https://vuldb.com/submit/933388", "name": "Submit #933388 | Wavlink WN530HG4B M30HG4B_V260724 Heap-based Buffer Overflow", "tags": [ "third-party-advisory" ] }, { "url": "https://drive.google.com/file/d/12OOh8g9YDCbD-Q4cc52J6TH9KuOoD44A/view?usp=drive_link", "tags": [ "exploit" ] }, { "url": "https://dl.wavlink.com/firmware/RD/WN530BE2_WAVLINK-WO-2026-09-24-841a51c6d5_tclinux.bin", "tags": [ "patch" ] } ], "x_generator": [ "VulDB PVTS v202610" ] }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-15T18:34:10.216285Z", "id": "CVE-2026-110958", "options": [ { "Exploitation": "poc" }, { "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": "2026-10-15T18:34:20.350Z" } } ] } }