CVE-2026-15690

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-15690", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "state": "PUBLISHED", "assignerShortName": "VulDB", "dateReserved": "2026-07-14T04:55:16.031Z", "datePublished": "2026-07-14T11:45:07.861Z", "dateUpdated": "2026-07-14T12:56:38.149Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-07-14T11:45:07.861Z"}, "title": "open62541 Shared Client ua_client_connect.c responseReadNamespacesArray null pointer dereference", "problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-476", "lang": "en", "description": "NULL Pointer Dereference"}]}, {"descriptions": [{"type": "CWE", "cweId": "CWE-404", "lang": "en", "description": "Denial of Service"}]}], "affected": [{"vendor": "n/a", "product": "open62541", "versions": [{"version": "1.5.0", "status": "affected"}, {"version": "1.5.1", "status": "affected"}, {"version": "1.5.2", "status": "affected"}, {"version": "1.5.3", "status": "affected"}, {"version": "1.5.4", "status": "affected"}, {"version": "1.5.5", "status": "affected"}], "cpes": ["cpe:2.3:a:open62541:open62541:*:*:*:*:*:*:*:*"], "modules": ["Shared Client Library"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in open62541 up to 1.5.5. Affected by this issue is the function responseReadNamespacesArray of the file src/client/ua_client_connect.c of the component Shared Client Library. Such manipulation of the argument Server_NamespaceArray leads to null pointer dereference. The attack can be executed remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit is publicly available and might be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability."}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 2.3, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P", "baseSeverity": "LOW"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.1, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.1, "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R", "baseSeverity": "LOW"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 2.1, "vectorString": "AV:N/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}], "timeline": [{"time": "2026-07-14T00:00:00.000Z", "lang": "en", "value": "Advisory disclosed"}, {"time": "2026-07-14T02:00:00.000Z", "lang": "en", "value": "VulDB entry created"}, {"time": "2026-07-14T07:19:49.000Z", "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"}, {"lang": "en", "value": "VulDB CNA Team", "type": "coordinator"}], "references": [{"url": "https://vuldb.com/vuln/378237", "name": "VDB-378237 | open62541 Shared Client ua_client_connect.c responseReadNamespacesArray null pointer dereference", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/378237/cti", "name": "VDB-378237 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-15690", "name": "CVE-2026-15690 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/855996", "name": "Submit #855996 | open62541 Project open62541 master (commit ca356b088ada7dee824d1b4acd07c1ff07ce242b\uff09 out-of-bounds read", "tags": ["third-party-advisory"]}, {"url": "https://github.com/open62541/open62541/issues/8104", "tags": ["exploit", "issue-tracking"]}, {"url": "https://github.com/open62541/open62541/", "tags": ["product"]}]}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-07-14T12:56:05.426097Z", "id": "CVE-2026-15690", "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": "2026-07-14T12:56:38.149Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-15690", "role": "CISA Coordinator", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-14T12:56:05.426097Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-14T12:56:34.633Z"}}], "cna": {"title": "open62541 Shared Client ua_client_connect.c responseReadNamespacesArray null pointer dereference", "credits": [{"lang": "en", "type": "finder", "value": "Chuan Wei"}, {"lang": "en", "type": "reporter", "value": "VULL (VulDB User)"}, {"lang": "en", "type": "analyst", "value": "VULL (VulDB User)"}, {"lang": "en", "type": "coordinator", "value": "VulDB CNA Team"}], "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 2.3, "baseSeverity": "LOW", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"}}, {"cvssV3_1": {"version": "3.1", "baseScore": 3.1, "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R"}}, {"cvssV3_0": {"version": "3.0", "baseScore": 3.1, "baseSeverity": "LOW", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R"}}, {"cvssV2_0": {"version": "2.0", "baseScore": 2.1, "vectorString": "AV:N/AC:H/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR"}}], "affected": [{"cpes": ["cpe:2.3:a:open62541:open62541:*:*:*:*:*:*:*:*"], "vendor": "n/a", "modules": ["Shared Client Library"], "product": "open62541", "versions": [{"status": "affected", "version": "1.5.0"}, {"status": "affected", "version": "1.5.1"}, {"status": "affected", "version": "1.5.2"}, {"status": "affected", "version": "1.5.3"}, {"status": "affected", "version": "1.5.4"}, {"status": "affected", "version": "1.5.5"}]}], "timeline": [{"lang": "en", "time": "2026-07-14T00:00:00.000Z", "value": "Advisory disclosed"}, {"lang": "en", "time": "2026-07-14T02:00:00.000Z", "value": "VulDB entry created"}, {"lang": "en", "time": "2026-07-14T07:19:49.000Z", "value": "VulDB entry last update"}], "references": [{"url": "https://vuldb.com/vuln/378237", "name": "VDB-378237 | open62541 Shared Client ua_client_connect.c responseReadNamespacesArray null pointer dereference", "tags": ["vdb-entry", "technical-description"]}, {"url": "https://vuldb.com/vuln/378237/cti", "name": "VDB-378237 | CTI Indicators (IOB, IOC, IOA)", "tags": ["signature", "permissions-required"]}, {"url": "https://vuldb.com/cve/CVE-2026-15690", "name": "CVE-2026-15690 | CVE Analysis and Report", "tags": ["third-party-advisory"]}, {"url": "https://vuldb.com/submit/855996", "name": "Submit #855996 | open62541 Project open62541 master (commit ca356b088ada7dee824d1b4acd07c1ff07ce242b\uff09 out-of-bounds read", "tags": ["third-party-advisory"]}, {"url": "https://github.com/open62541/open62541/issues/8104", "tags": ["exploit", "issue-tracking"]}, {"url": "https://github.com/open62541/open62541/", "tags": ["product"]}], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in open62541 up to 1.5.5. Affected by this issue is the function responseReadNamespacesArray of the file src/client/ua_client_connect.c of the component Shared Client Library. Such manipulation of the argument Server_NamespaceArray leads to null pointer dereference. The attack can be executed remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit is publicly available and might be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "NULL Pointer Dereference"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-404", "description": "Denial of Service"}]}], "providerMetadata": {"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "shortName": "VulDB", "dateUpdated": "2026-07-14T11:45:07.861Z"}}}, "cveMetadata": {"cveId": "CVE-2026-15690", "state": "PUBLISHED", "dateUpdated": "2026-07-14T12:56:38.149Z", "dateReserved": "2026-07-14T04:55:16.031Z", "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5", "datePublished": "2026-07-14T11:45:07.861Z", "assignerShortName": "VulDB"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"cpes": ["cpe:2.3:a:open62541:open62541:*:*:*:*:*:*:*:*"], "modules": ["Shared Client Library"], "product": "open62541", "vendor": "n/a", "versions": [{"status": "affected", "version": "1.5.0"}, {"status": "affected", "version": "1.5.1"}, {"status": "affected", "version": "1.5.2"}, {"status": "affected", "version": "1.5.3"}, {"status": "affected", "version": "1.5.4"}, {"status": "affected", "version": "1.5.5"}]}], "source": "cna@vuldb.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A vulnerability was identified in open62541 up to 1.5.5. Affected by this issue is the function responseReadNamespacesArray of the file src/client/ua_client_connect.c of the component Shared Client Library. Such manipulation of the argument Server_NamespaceArray leads to null pointer dereference. The attack can be executed remotely. The attack requires a high level of complexity. The exploitation is known to be difficult. The exploit is publicly available and might be used. The project closed the issue report, stating that this is not the official way to report a security vulnerability."}], "id": "CVE-2026-15690", "lastModified": "2026-07-14T15:26:24.850", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 2.1, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:H/Au:S/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "cna@vuldb.com", "type": "Secondary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 3.1, "baseSeverity": "LOW", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 1.4, "source": "cna@vuldb.com", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 1.3, "baseSeverity": "LOW", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "LOW", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "cna@vuldb.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-15690", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-14T12:56:05.426097Z", "version": "2.0.3"}}]}, "published": "2026-07-14T12:16:55.947", "references": [{"source": "cna@vuldb.com", "url": "https://github.com/open62541/open62541/"}, {"source": "cna@vuldb.com", "url": "https://github.com/open62541/open62541/issues/8104"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/cve/CVE-2026-15690"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/submit/855996"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/378237"}, {"source": "cna@vuldb.com", "url": "https://vuldb.com/vuln/378237/cti"}], "sourceIdentifier": "cna@vuldb.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-404"}, {"lang": "en", "value": "CWE-476"}], "source": "cna@vuldb.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.5.0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.5.1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.5.2"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.5.3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.5.4"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "1.5.5"}}], "enrichment": {"confidence": 95.0, "confidence_source": "inferred", "scores": [{"score": 95.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "open62541", "source": "cna", "vendor": "n/a"}, "product": "open62541", "vendor": "open62541"}], "created": "2026-07-14T14:15:05.225825+00:00", "updated": "2026-07-31T10:45:04.937199+00:00", "vendors": ["open62541", "open62541$PRODUCT$open62541"]}