{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15105", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-07-08T17:07:19.722Z", "datePublished": "2026-07-08T22:15:12.176Z", "dateUpdated": "2026-07-08T22:15:12.176Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-07-08T22:15:12.176Z"}, "title": "davenardella snap7 ReadVar Request s7_server.cpp PerformFunctionRead deserialization", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-502", "lang": "en", "description": "Deserialization"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-20", "lang": "en", "description": "Improper Input Validation"}]}], "affected": [{"vendor": "davenardella", "product": "snap7", "versions": [{"version": "1.4.0", "status": "affected"}, {"version": "1.4.1", "status": "affected"}, {"version": "1.4.2", "status": "affected"}, {"version": "1.4.3", "status": "affected"}], "cpes": ["cpe:2.3:a:davenardella:snap7:*:*:*:*:*:*:*:*"], "modules": ["ReadVar Request Handler"]}], "descriptions": [{"lang": "en", "value": "A flaw has been found in davenardella snap7 up to 1.4.3. This affects the function TS7Worker::PerformFunctionRead of the file src/core/s7_server.cpp of the component ReadVar Request Handler. This manipulation causes deserialization. The attack requires access to the local network. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "MEDIUM"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 6.3, "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 6.3, "vectorString": "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 5.8, "vectorString": "AV:A/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-07-08T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-07-08T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-07-08T19:12:23.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "VULL (VulDB User)", "type": "reporter"}, {"lang": "en", "value": "VulDB CNA Team", "type": "coordinator"}], "references": [{"url": "https://vuldb.com/vuln/376946", "name": "VDB-376946 | davenardella snap7 ReadVar Request s7_server.cpp PerformFunctionRead deserialization", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/376946/cti", "name": "VDB-376946 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-15105", "name": "CVE-2026-15105 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/851026", "name": "Submit #851026 | Davide Nardella Snap7 master(commit:30f37da3114024a71ba93f7fd855c680b97a406f) Stack-based Buffer Overflow", "tags": ["third-party-advisory"]}, {"url": "https://github.com/davenardella/snap7/issues/16", "tags": ["issue-tracking"]}, {"url": "https://github.com/user-attachments/files/28681740/poc.zip", "tags": ["exploit"]}, {"url": "https://github.com/davenardella/snap7/", "tags": ["product"]}]}}}

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