{"vulnerability": "CVE-2023-28831", "sightings": [{"uuid": "0d98abc7-cb19-4242-85e7-34d9723fee64", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-28831", "type": "seen", "source": "https://t.me/DarkWebInformer_CVEAlerts/19435", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2023-28831\n\ud83d\udd25 CVSS Score: 7.5 (cvssV3_1, Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C)\n\ud83d\udd39 Description: The OPC UA implementations (ANSI C and C++) in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation.\n\nThis could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate.\n\ud83d\udccf Published: 2023-09-12T09:32:06.153Z\n\ud83d\udccf Modified: 2025-06-25T13:40:48.411Z\n\ud83d\udd17 References:\n1. https://cert-portal.siemens.com/productcert/pdf/ssa-711309.pdf\n2. https://cert-portal.siemens.com/productcert/pdf/ssa-118850.pdf\n3. https://cert-portal.siemens.com/productcert/html/ssa-711309.html\n4. https://cert-portal.siemens.com/productcert/html/ssa-118850.html", "creation_timestamp": "2025-06-25T13:50:45.000000Z"}, {"uuid": "3754550b-67f6-43ab-9171-44b773a948fe", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-28831", "type": "seen", "source": "https://t.me/cibsecurity/70269", "content": "\u203c CVE-2023-28831 \u203c\n\nThe ANSI C OPC UA SDK contains an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation.This could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate.\n\n\ud83d\udcd6 Read\n\nvia \"National Vulnerability Database\".", "creation_timestamp": "2023-09-12T14:23:04.000000Z"}]}