{"id":"CVE-2026-78049","state":"PUBLISHED","title":"Systerel S2OPC AddNodes Service sopc_node_mgt_helper_internal.c out-of-bounds","description":"A vulnerability has been found in Systerel S2OPC up to 1.7.3. Impacted is the function SOPC_NodeMgtHelperInternal_AddVariableNodeAttributes of the file src/ClientServer/address_space/internal/sopc_node_mgt_helper_internal.c of the component AddNodes Service. The manipulation of the argument UserAccessLevel leads to out-of-bounds read. It is possible to initiate the attack remotely. A high degree of complexity is needed for the attack. The exploitability is considered difficult. The exploit has been disclosed to the public and may be used. The identifier of the patch is aafbd37d381b618312ebdf5ddf57027f62c14fdd. It is suggested to install a patch to address this issue.","publishedAt":"2026-08-22T22:30:12.857Z","updatedAt":"2026-08-27T14:38:27.851Z","severity":{"score":6.3,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","source":"VulDB"},"assigner":"VulDB","products":["Systerel S2OPC"],"affected":[{"vendor":"Systerel","product":"S2OPC","versions":[{"version":"1.7.0","status":"affected"},{"version":"1.7.1","status":"affected"},{"version":"1.7.2","status":"affected"},{"version":"1.7.3","status":"affected"}],"cpes":["cpe:2.3:a:systerel:s2opc:*:*:*:*:*:*:*:*"],"modules":["AddNodes Service"]}],"references":["https://vuldb.com/vuln/394290","https://vuldb.com/vuln/394290/cti","https://vuldb.com/cve/CVE-2026-78049","https://vuldb.com/submit/881262","https://gitlab.com/systerel/S2OPC/-/work_items/1787","https://gitlab.com/systerel/S2OPC/-/merge_requests/1826","https://github.com/user-attachments/files/29702766/PoC.zip","https://gitlab.com/systerel/S2OPC/-/commit/aafbd37d381b618312ebdf5ddf57027f62c14fdd"],"weaknesses":["CWE-125","CWE-119"],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/78xxx/CVE-2026-78049.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-78049","state":"PUBLISHED","datePublished":"2026-08-22T22:30:12.857Z","dateUpdated":"2026-08-27T14:38:27.851Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-08-22T07:44:38.629Z"},"containers":{"cna":{"title":"Systerel S2OPC AddNodes Service sopc_node_mgt_helper_internal.c out-of-bounds","descriptions":[{"lang":"en","value":"A vulnerability has been found in Systerel S2OPC up to 1.7.3. Impacted is the function SOPC_NodeMgtHelperInternal_AddVariableNodeAttributes of the file src/ClientServer/address_space/internal/sopc_node_mgt_helper_internal.c of the component AddNodes Service. The manipulation of the argument UserAccessLevel leads to out-of-bounds read. It is possible to initiate the attack remotely. A high degree of complexity is needed for the attack. The exploitability is considered difficult. The exploit has been disclosed to the public and may be used. The identifier of the patch is aafbd37d381b618312ebdf5ddf57027f62c14fdd. It is suggested to install a patch to address this issue."}],"affected":[{"vendor":"Systerel","product":"S2OPC","versions":[{"version":"1.7.0","status":"affected"},{"version":"1.7.1","status":"affected"},{"version":"1.7.2","status":"affected"},{"version":"1.7.3","status":"affected"}],"cpes":["cpe:2.3:a:systerel:s2opc:*:*:*:*:*:*:*:*"],"modules":["AddNodes Service"]}],"references":[{"url":"https://vuldb.com/vuln/394290","name":"VDB-394290 | Systerel S2OPC AddNodes Service sopc_node_mgt_helper_internal.c out-of-bounds","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/394290/cti","name":"VDB-394290 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-78049","name":"CVE-2026-78049 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/881262","name":"Submit #881262 | Systerel S2OPC 1.7.3 Heap-based Out-of-Bounds Read","tags":["third-party-advisory"]},{"url":"https://gitlab.com/systerel/S2OPC/-/work_items/1787","tags":["related"]},{"url":"https://gitlab.com/systerel/S2OPC/-/merge_requests/1826","tags":["patch"]},{"url":"https://github.com/user-attachments/files/29702766/PoC.zip","tags":["exploit"]},{"url":"https://gitlab.com/systerel/S2OPC/-/commit/aafbd37d381b618312ebdf5ddf57027f62c14fdd","tags":["patch"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":6.3,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":3.7,"vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","baseSeverity":"LOW"}},{"cvssV3_0":{"version":"3.0","baseScore":3.7,"vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","baseSeverity":"LOW"}},{"cvssV2_0":{"version":"2.0","baseScore":2.6,"vectorString":"AV:N/AC:H/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","type":"CWE","lang":"en","description":"Out-of-Bounds Read"}]},{"descriptions":[{"cweId":"CWE-119","type":"CWE","lang":"en","description":"Memory Corruption"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-08-22T22:30:12.857Z"},"timeline":[{"time":"2026-08-22T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-08-22T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-08-22T09:50:13.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Carnegie (VulDB User)","type":"reporter"}],"x_generator":["VulDB PVTS v202608"]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-27T13:27:57.701642Z","id":"CVE-2026-78049","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-27T14:38:27.851Z"}}]}}}