High severity7.5NVD Advisory· Published Sep 12, 2023· Updated Jun 17, 2026
CVE-2023-28831
CVE-2023-28831
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.
This could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
176- Siemens/SIMATIC BRAUMATv5Range: 0
- Siemens/SIMATIC Comfort/Mobile RTv5Range: 0
- Siemens/SIMATIC ET 200SP CPU 1514SPT-2 PNv5Range: 0
0+ 2 more
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1510sp_f-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
0+ 2 more
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1512sp-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- cpe:2.3:o:siemens:simatic_cloud_connect_7_cc712_firmware:*:*:*:*:*:*:*:*Range: <2.2
- cpe:2.3:o:siemens:simatic_cloud_connect_7_cc716_firmware:*:*:*:*:*:*:*:*Range: <2.2
- cpe:2.3:o:siemens:simatic_drive_controller_cpu_1504d_tf_firmware:*:*:*:*:*:*:*:*Range: <2.2
- cpe:2.3:o:siemens:simatic_drive_controller_cpu_1507d_tf_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_et_200sp_open_controller_cpu_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1200_cpu_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1510sp-1_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1510sp_f-1_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511-1_pn_firmware:*:*:*:*:*:*:*:*Range: <21.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511c-1_pn_firmware:*:*:*:*:*:*:*:*Range: <30.0.0
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511f-1_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511t-1_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1511tf-1_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1512c-1_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1512sp-1_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1512sp_f-1_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1513-1_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1513f-1_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1513r-1_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1514sp-2_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
cpe:2.3:o:siemens:simatic_s7-1500_cpu_1514sp_f-2_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1514sp_f-2_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1514spt-2_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
cpe:2.3:o:siemens:simatic_s7-1500_cpu_1514spt_f-2_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1514spt_f-2_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515-2_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515f-2_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515r-2_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515t-2_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1515tf-2_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516f-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516t-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1516tf-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517f-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517h-3_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517t-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1517tf-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518-4_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <21.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518f-4_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518hf-4_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518t-4_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_1518tf-4_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_s7-1518-4_pn\/dp_odk_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_cpu_s7-1518f-4_pn\/dp_odk_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_et_200pro_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-1500_software_controller_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:simatic_s7-plcsim_advanced_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
cpe:2.3:o:siemens:siplus_et_200sp_cpu_1510sp-1_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1510sp-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1510sp-1_pn_rail_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
cpe:2.3:o:siemens:siplus_et_200sp_cpu_1510sp_f-1_pn_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1510sp_f-1_pn_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1512sp-1_pn_rail_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
cpe:2.3:o:siemens:siplus_et_200sp_cpu_1512sp_f-1_pn_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1512sp_f-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_et_200sp_cpu_1512sp_f-1_pn_rail_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511-1_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511-1_pn_t1_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511-1_pn_t1_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511-1_pn_tx_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511-1_pn_tx_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511f-1_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1511f-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1513-1_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1513-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1513f-1_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1513f-1_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515f-2_pn_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515f-2_pn_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515f-2_pn_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515f-2_pn_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515f-2_pn_t2_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515f-2_pn_t2_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515r-2_pn_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1515r-2_pn_tx_rail_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516-3_pn\/dp_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516-3_pn\/dp_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516-3_pn\/dp_tx_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516-3_pn\/dp_tx_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516f-3_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <2.9.7
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516f-3_pn\/dp_rail_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1516f-3_pn\/dp_rail_firmware:*:*:*:*:*:*:*:*range: <2.9.7
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1517h-3_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1518-4_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
cpe:2.3:o:siemens:siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware:*:*:*:*:*:*:*:*range: <3.0.3
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1518f-4_pn\/dp_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
- cpe:2.3:o:siemens:siplus_s7-1500_cpu_1518hf-4_pn_firmware:*:*:*:*:*:*:*:*Range: <3.0.3
0+ 5 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
V3.0.1+ 1 more
- (no CPE)range: V3.0.1
- (no CPE)range: V3.0.1
- Range: V30.0.0
0+ 6 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 6 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 3 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 7 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 4 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 2 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
- Range: 0
0+ 3 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
- Range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
0+ 2 more
- (no CPE)range: 0
- (no CPE)range: 0
- (no CPE)range: 0
0+ 1 more
- (no CPE)range: 0
- (no CPE)range: 0
Patches
Vulnerability mechanics
References
4- cert-portal.siemens.com/productcert/html/ssa-118850.htmlnvdMitigationVendor Advisory
- cert-portal.siemens.com/productcert/html/ssa-711309.htmlnvdMitigationVendor Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-118850.pdfnvdMitigationVendor Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-711309.pdfnvdVendor Advisory
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