{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-16225", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-07-18T12:29:33.863Z", "datePublished": "2026-07-19T08:00:09.002Z", "dateUpdated": "2026-07-19T08:00:09.002Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-07-19T08:00:09.002Z"}, "title": "davenardella snap7 s7_peer.cpp NegotiatePDULength out-of-bounds write", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-787", "lang": "en", "description": "Out-of-bounds Write"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-119", "lang": "en", "description": "Memory Corruption"}]}], "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:*:*:*:*:*:*:*:*"]}], "descriptions": [{"lang": "en", "value": "A security flaw has been discovered in davenardella snap7 up to 1.4.3. The impacted element is the function TSnap7Peer::NegotiatePDULength of the file src/core/s7_peer.cpp. The manipulation of the argument PDULength results in out-of-bounds write. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 5.3, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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:N/AC:L/PR:L/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:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R", "baseSeverity": "MEDIUM"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 6.5, "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-07-18T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-07-18T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-07-18T15:57:11.000Z", "lang": "en", "value": "VulDB entry last update"}], "credits": [{"lang": "en", "value": "Chuan Wei", "type": "finder"}, {"lang": "en", "value": "VULL (VulDB User)", "type": "reporter"}, {"lang": "en", "value": "VULL (VulDB User)", "type": "analyst"}], "references": [{"url": "https://vuldb.com/vuln/380047", "name": "VDB-380047 | davenardella snap7 s7_peer.cpp NegotiatePDULength out-of-bounds write", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/380047/cti", "name": "VDB-380047 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-16225", "name": "CVE-2026-16225 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/858228", "name": "Submit #858228 | Davide Nardella Snap7 1.4.3 Heap-Based Intra-Object Out-of-Bounds Write", "tags": ["third-party-advisory"]}, {"url": "https://github.com/davenardella/snap7/issues/17", "tags": ["exploit", "issue-tracking"]}, {"url": "https://github.com/davenardella/snap7/", "tags": ["product"]}]}}}

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