CVE-2023-28831The OPC UA implementations (ANSI C and C++) in affected products contain an integer overflow vulnerability that could cause the…
- 8.7HighCVSS base score
- 1.1%Exploitation in 30 daysEPSS · top 33% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By siemens
- 6 months later
· 6 months later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| siemensCNA (assigner) | 4.0 | High8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| siemensCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 4.0 | High8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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 |
- EPSS (exploitation in 30 days)
- 1.1% · top 33% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.7.
Affected products
- affected < V8.1 SP1
Siemens · SIMATIC Cloud Connect 7 CC712
- affected < V2.2
Siemens · SIMATIC Cloud Connect 7 CC716
- affected < V2.2
Siemens · SIMATIC Comfort/Mobile RT
- affected < *
Siemens · SIMATIC Drive Controller CPU 1504D TF
- affected < V2.9.7
Siemens · SIMATIC Drive Controller CPU 1504D TF
- affected V3.0.1 – < V3.0.3
Siemens · SIMATIC Drive Controller CPU 1507D TF
- affected < V2.9.7
Siemens · SIMATIC Drive Controller CPU 1507D TF
- affected V3.0.1 – < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1510SP F-1 PN
- affected < V2.9.7
Siemens · SIMATIC ET 200SP CPU 1510SP F-1 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1510SP-1 PN
- affected < V2.9.7
Siemens · SIMATIC ET 200SP CPU 1510SP-1 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1512SP F-1 PN
- affected < V2.9.7
Siemens · SIMATIC ET 200SP CPU 1512SP F-1 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1512SP-1 PN
- affected < V2.9.7
Siemens · SIMATIC ET 200SP CPU 1512SP-1 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1514SP F-2 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1514SP-2 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1514SPT F-2 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP CPU 1514SPT-2 PN
- affected < V3.0.3
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
- affected < V21.9.7
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
- affected V30.0.0 – < V30.1.0
Siemens · SIMATIC IPC DiagMonitor
- affected < *
Siemens · SIMATIC NET PC Software V14
- affected < *
Siemens · SIMATIC NET PC Software V16
- affected < V16 Update 8
Siemens · SIMATIC NET PC Software V17
- affected < V17 SP1 Update 1
Siemens · SIMATIC NET PC Software V18
- affected < V18 Update 1
- affected < V9.1 SP2 UC08
Siemens · SIMATIC PCS neo V4.0
- affected < *
Siemens · SIMATIC S7-1500 CPU 1511-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511-1 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1511C-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511C-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511F-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511F-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511F-1 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1511T-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511T-1 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1511TF-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1511TF-1 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1512C-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1512C-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1513-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1513-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1513-1 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1513F-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1513F-1 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1513F-1 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1515-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1515-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1515-2 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1515F-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1515F-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1515F-2 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1515T-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1515T-2 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1515TF-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1515TF-2 PN
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1516-3 PN/DP
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1516-3 PN/DP
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1516-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1516F-3 PN/DP
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1516F-3 PN/DP
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU 1516F-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1516T-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1516TF-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1517-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1517F-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1517T-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1517TF-3 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1518F-4 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1518T-4 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU 1518TF-4 PN/DP
- affected < V3.0.3
Siemens · SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK
- affected < V2.9.7
Siemens · SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK
- affected < V2.9.7
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN
- affected < V2.9.7
Siemens · SIMATIC S7-1500 Software Controller V2
- affected < V21.9.7
Siemens · SIMATIC S7-1500 Software Controller V3
- affected < V30.1.0
Siemens · SIMATIC S7-PLCSIM Advanced
- affected < V5.0 Update 2
- affected < V8.1 SP1
Siemens · SIMATIC WinCC OA V3.17
- affected < V3.17 P029
Siemens · SIMATIC WinCC OA V3.18
- affected < V3.18 P019
Siemens · SIMATIC WinCC OA V3.19
- affected < V3.19 P005
Siemens · SIMATIC WinCC OPC UA Client
- affected < V2.0.0.1
Siemens · SIMATIC WinCC Runtime Professional V16
- affected < *
Siemens · SIMATIC WinCC Runtime Professional V17
- affected < *
Siemens · SIMATIC WinCC Runtime Professional V18
- affected < *
Siemens · SIMATIC WinCC Runtime Professional V19
- affected < V19 Update 2
Siemens · SIMATIC WinCC Unified OPC UA Server
- affected < V5.0.0.0
- affected < *
- affected < V7.5 SP2 Update 20
- affected < V8.0 Update 5
- affected < V1.22
- affected < V6.22
Siemens · SIPLUS ET 200SP CPU 1510SP F-1 PN
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1510SP-1 PN
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1510SP-1 PN
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1510SP-1 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1510SP-1 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP F-1 PN
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP F-1 PN
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP-1 PN
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP-1 PN
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP-1 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS ET 200SP CPU 1512SP-1 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN TX RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511-1 PN TX RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511F-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1511F-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1513-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1513-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1513-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1513-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1513F-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1513F-1 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1515F-2 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1515F-2 PN
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1515F-2 PN RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516F-3 PN/DP
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516F-3 PN/DP
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL
- affected < V2.9.7
Siemens · SIPLUS S7-1500 CPU 1518-4 PN/DP
- affected < V3.0.3
Siemens · SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
- affected < V3.0.3
Siemens · SIPLUS S7-1500 CPU 1518F-4 PN/DP
- affected < V3.0.3
References
References4
- https://cert-portal.siemens.com/productcert/pdf/ssa-711309.pdf (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/pdf/ssa-118850.pdf (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-711309.html (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-118850.html (opens in a new tab)x_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-32463 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-28831)Record last updated .