Advisories › Siemens › ICSA-26-295-14
Siemens SIMATIC S7 PLCs Web Server: 8 CVEs, Critical 9.6
Summary
CISA reports 8 vulnerabilities in Siemens SIMATIC Drive Controller CPU 1504D TF (6ES7615-4DF10-0AB0), SIMATIC Drive Controller CPU 1507D TF (6ES7615-7DF10-0AB0), SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SJ01-0AB0), SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SK03-0AB0) and 153 more. Weakness types: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection'), Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). SIMATIC S7-1500 devices contain multiple vulnerabilities in the web server that could allow an attacker to execute malicious code in an authorized user’s browser session and perform PLC operations within the scope of that user’s authorization. Highest CVSS v3 score: 9.6 (Critical), exploitable over the network.
What to do: Act now: Disable the webserver if not required on the affected systems. Restrict the access to Port 80/tcp and 443/tcp to trusted IP address only The vendor lists no fix for some issues, so lean on mitigations.
Why this matters for oil & gas: Siemens (SIMATIC S7, PCS 7, WinCC, RUGGEDCOM) is widely used in process plants and pipelines; Affected products include SIMATIC S7.
At a glance
- Vendor
- Siemens
- Products
- SIMATIC Drive Controller CPU 1504D TF (6ES7615-4DF10-0AB0), SIMATIC Drive Controller CPU 1507D TF (6ES7615-7DF10-0AB0), SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SJ01-0AB0), SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SK03-0AB0), SIMATIC ET 200SP CPU 1510SP-1 PN (6ES7510-1DJ01-0AB0), SIMATIC ET 200SP CPU 1510SP-1 PN (6ES7510-1DK03-0AB0), SIMATIC ET 200SP CPU 1512SP F-1 PN (6ES7512-1SK01-0AB0), SIMATIC ET 200SP CPU 1512SP F-1 PN (6ES7512-1SM03-0AB0)
- CVEs
- CVE-2026-63350, CVE-2026-63351, CVE-2026-63352, CVE-2026-63353, CVE-2026-63354, CVE-2026-63355, CVE-2026-63356, CVE-2026-63357
- Highest CVSS v3
- 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- Highest CVSS v4
- –
- Known exploited (KEV)
- No CVE from this advisory is on the KEV list as of the last refresh
- Sectors (per CISA)
- Critical Manufacturing, Transportation Systems, Energy, Healthcare and Public Health, Financial Services, Government Services and Facilities
- Deployed
- Worldwide
- Vendor HQ
- Germany
Vulnerabilities
| CVE | Weakness | CVSS v3 | CVSS v4 | KEV | Description (from advisory) |
|---|---|---|---|---|---|
| CVE-2026-63350 | Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection') | 9.6 | – | No | CVE-2026-63350 |
| CVE-2026-63351 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 6.1 | – | No | CVE-2026-63351 |
| CVE-2026-63352 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 6.1 | – | No | CVE-2026-63352 |
| CVE-2026-63353 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 9.6 | – | No | CVE-2026-63353 |
| CVE-2026-63354 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 9.6 | – | No | CVE-2026-63354 |
| CVE-2026-63355 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 6.1 | – | No | CVE-2026-63355 |
| CVE-2026-63356 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 6.1 | – | No | CVE-2026-63356 |
| CVE-2026-63357 | Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') | 6.1 | – | No | CVE-2026-63357 |
Affected products (157)
- SIMATIC Drive Controller CPU 1504D TF (6ES7615-4DF10-0AB0)
- SIMATIC Drive Controller CPU 1507D TF (6ES7615-7DF10-0AB0)
- SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SJ01-0AB0)
- SIMATIC ET 200SP CPU 1510SP F-1 PN (6ES7510-1SK03-0AB0)
- SIMATIC ET 200SP CPU 1510SP-1 PN (6ES7510-1DJ01-0AB0)
- SIMATIC ET 200SP CPU 1510SP-1 PN (6ES7510-1DK03-0AB0)
- SIMATIC ET 200SP CPU 1512SP F-1 PN (6ES7512-1SK01-0AB0)
- SIMATIC ET 200SP CPU 1512SP F-1 PN (6ES7512-1SM03-0AB0)
- SIMATIC ET 200SP CPU 1512SP-1 PN (6ES7512-1DK01-0AB0)
- SIMATIC ET 200SP CPU 1512SP-1 PN (6ES7512-1DM03-0AB0)
- SIMATIC ET 200SP CPU 1514SP F-2 PN (6ES7514-2SN03-0AB0)
- SIMATIC ET 200SP CPU 1514SP-2 PN (6ES7514-2DN03-0AB0)
- SIMATIC ET 200SP CPU 1514SPT F-2 PN (6ES7514-2WN03-0AB0)
- SIMATIC ET 200SP CPU 1514SPT-2 PN (6ES7514-2VN03-0AB0)
- SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)
- SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V2 CPUs - Windows OS
- SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V3 CPUs - Industrial OS
- SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V3 CPUs - Windows OS
- SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs
- SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK00-0AB0)
- SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK01-0AB0)
- SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AK02-0AB0)
- SIMATIC S7-1500 CPU 1511-1 PN (6ES7511-1AL03-0AB0)
- SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK00-0AB0)
- SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CK01-0AB0)
- SIMATIC S7-1500 CPU 1511C-1 PN (6ES7511-1CL03-0AB0)
- SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK01-0AB0)
- SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FK02-0AB0)
- SIMATIC S7-1500 CPU 1511F-1 PN (6ES7511-1FL03-0AB0)
- SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TK01-0AB0)
- SIMATIC S7-1500 CPU 1511T-1 PN (6ES7511-1TL03-0AB0)
- SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UK01-0AB0)
- SIMATIC S7-1500 CPU 1511TF-1 PN (6ES7511-1UL03-0AB0)
- SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK00-0AB0)
- SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CK01-0AB0)
- SIMATIC S7-1500 CPU 1512C-1 PN (6ES7512-1CM03-0AB0)
- SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL01-0AB0)
- SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AL02-0AB0)
- SIMATIC S7-1500 CPU 1513-1 PN (6ES7513-1AM03-0AB0)
- SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL01-0AB0)
Show 117 more
- SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FL02-0AB0)
- SIMATIC S7-1500 CPU 1513F-1 PN (6ES7513-1FM03-0AB0)
- SIMATIC S7-1500 CPU 1513pro F-2 PN (6ES7513-2GM03-0AB0)
- SIMATIC S7-1500 CPU 1513pro-2 PN (6ES7513-2PM03-0AB0)
- SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM01-0AB0)
- SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AM02-0AB0)
- SIMATIC S7-1500 CPU 1515-2 PN (6ES7515-2AN03-0AB0)
- SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM01-0AB0)
- SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FM02-0AB0)
- SIMATIC S7-1500 CPU 1515F-2 PN (6ES7515-2FN03-0AB0)
- SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TM01-0AB0)
- SIMATIC S7-1500 CPU 1515T-2 PN (6ES7515-2TN03-0AB0)
- SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UM01-0AB0)
- SIMATIC S7-1500 CPU 1515TF-2 PN (6ES7515-2UN03-0AB0)
- SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN01-0AB0)
- SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AN02-0AB0)
- SIMATIC S7-1500 CPU 1516-3 PN/DP (6ES7516-3AP03-0AB0)
- SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN01-0AB0)
- SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FN02-0AB0)
- SIMATIC S7-1500 CPU 1516F-3 PN/DP (6ES7516-3FP03-0AB0)
- SIMATIC S7-1500 CPU 1516pro F-2 PN (6ES7516-2GP03-0AB0)
- SIMATIC S7-1500 CPU 1516pro-2 PN (6ES7516-2PP03-0AB0)
- SIMATIC S7-1500 CPU 1516T-3 PN (6ES7516-3TP10-0AB0)
- SIMATIC S7-1500 CPU 1516T-3 PN/DP (6ES7516-3TN00-0AB0)
- SIMATIC S7-1500 CPU 1516TF-3 PN (6ES7516-3UP10-0AB0)
- SIMATIC S7-1500 CPU 1516TF-3 PN/DP (6ES7516-3UN00-0AB0)
- SIMATIC S7-1500 CPU 1517-3 PN (6ES7517-3AQ10-0AB0)
- SIMATIC S7-1500 CPU 1517-3 PN/DP (6ES7517-3AP00-0AB0)
- SIMATIC S7-1500 CPU 1517F-3 PN (6ES7517-3FQ10-0AB0)
- SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP00-0AB0)
- SIMATIC S7-1500 CPU 1517F-3 PN/DP (6ES7517-3FP01-0AB0)
- SIMATIC S7-1500 CPU 1517T-3 PN (6ES7517-3TQ10-0AB0)
- SIMATIC S7-1500 CPU 1517T-3 PN/DP (6ES7517-3TP00-0AB0)
- SIMATIC S7-1500 CPU 1517TF-3 PN (6ES7517-3UQ10-0AB0)
- SIMATIC S7-1500 CPU 1517TF-3 PN/DP (6ES7517-3UP00-0AB0)
- SIMATIC S7-1500 CPU 1518-3 PN (6ES7518-3AT10-0AB0)
- SIMATIC S7-1500 CPU 1518-4 PN/DP (6ES7518-4AP00-0AB0)
- SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)
- SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)
- SIMATIC S7-1500 CPU 1518F-3 PN (6ES7518-3FT10-0AB0)
- SIMATIC S7-1500 CPU 1518F-4 PN/DP (6ES7518-4FP00-0AB0)
- SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)
- SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)
- SIMATIC S7-1500 CPU 1518T-3 PN (6ES7518-3TT10-0AB0)
- SIMATIC S7-1500 CPU 1518T-4 PN/DP (6ES7518-4TP00-0AB0)
- SIMATIC S7-1500 CPU 1518TF-3 PN (6ES7518-3UT10-0AB0)
- SIMATIC S7-1500 CPU 1518TF-4 PN/DP (6ES7518-4UP00-0AB0)
- SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK (6ES7518-4AP00-3AB0)
- SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK (6ES7518-4FP00-3AB0)
- SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN (6ES7513-2GL00-0AB0)
- SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN (6ES7513-2PL00-0AB0)
- SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN (6ES7516-2GN00-0AB0)
- SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN (6ES7516-2PN00-0AB0)
- SIMATIC S7-1500 Software Controller CPU 1507S F V2
- SIMATIC S7-1500 Software Controller CPU 1507S F V3
- SIMATIC S7-1500 Software Controller CPU 1507S F V4
- SIMATIC S7-1500 Software Controller CPU 1507S V2
- SIMATIC S7-1500 Software Controller CPU 1507S V3
- SIMATIC S7-1500 Software Controller CPU 1507S V4
- SIMATIC S7-1500 Software Controller CPU 1508S F V2
- SIMATIC S7-1500 Software Controller CPU 1508S F V3
- SIMATIC S7-1500 Software Controller CPU 1508S F V4
- SIMATIC S7-1500 Software Controller CPU 1508S T V3
- SIMATIC S7-1500 Software Controller CPU 1508S TF V3
- SIMATIC S7-1500 Software Controller CPU 1508S V2
- SIMATIC S7-1500 Software Controller CPU 1508S V3
- SIMATIC S7-1500 Software Controller CPU 1508S V4
- SIMATIC S7-1500 Software Controller Linux V2
- SIMATIC S7-1500 Software Controller Linux V3
- SIMATIC S7-PLCSIM Advanced
- SIPLUS ET 200SP CPU 1510SP F-1 PN (6AG1510-1SJ01-2AB0)
- SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL (6AG2510-1SJ01-1AB0)
- SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-2AB0)
- SIPLUS ET 200SP CPU 1510SP-1 PN (6AG1510-1DJ01-7AB0)
- SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-1AB0)
- SIPLUS ET 200SP CPU 1510SP-1 PN RAIL (6AG2510-1DJ01-4AB0)
- SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-2AB0)
- SIPLUS ET 200SP CPU 1512SP F-1 PN (6AG1512-1SK01-7AB0)
- SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-1AB0)
- SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL (6AG2512-1SK01-4AB0)
- SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-2AB0)
- SIPLUS ET 200SP CPU 1512SP-1 PN (6AG1512-1DK01-7AB0)
- SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-1AB0)
- SIPLUS ET 200SP CPU 1512SP-1 PN RAIL (6AG2512-1DK01-4AB0)
- SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-2AB0)
- SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK01-7AB0)
- SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-2AB0)
- SIPLUS S7-1500 CPU 1511-1 PN (6AG1511-1AK02-7AB0)
- SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK01-1AB0)
- SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL (6AG2511-1AK02-1AB0)
- SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK01-4AB0)
- SIPLUS S7-1500 CPU 1511-1 PN TX RAIL (6AG2511-1AK02-4AB0)
- SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK01-2AB0)
- SIPLUS S7-1500 CPU 1511F-1 PN (6AG1511-1FK02-2AB0)
- SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-2AB0)
- SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL01-7AB0)
- SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-2AB0)
- SIPLUS S7-1500 CPU 1513-1 PN (6AG1513-1AL02-7AB0)
- SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL01-2AB0)
- SIPLUS S7-1500 CPU 1513F-1 PN (6AG1513-1FL02-2AB0)
- SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM01-2AB0)
- SIPLUS S7-1500 CPU 1515F-2 PN (6AG1515-2FM02-2AB0)
- SIPLUS S7-1500 CPU 1515F-2 PN RAIL (6AG2515-2FM02-4AB0)
- SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL (6AG2515-2FM01-2AB0)
- SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-2AB0)
- SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN01-7AB0)
- SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-2AB0)
- SIPLUS S7-1500 CPU 1516-3 PN/DP (6AG1516-3AN02-7AB0)
- SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL (6AG2516-3AN02-4AB0)
- SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL (6AG2516-3AN01-4AB0)
- SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN01-2AB0)
- SIPLUS S7-1500 CPU 1516F-3 PN/DP (6AG1516-3FN02-2AB0)
- SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-2AB0)
- SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL (6AG2516-3FN02-4AB0)
- SIPLUS S7-1500 CPU 1518-4 PN/DP (6AG1518-4AP00-4AB0)
- SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)
- SIPLUS S7-1500 CPU 1518F-4 PN/DP (6AG1518-4FP00-4AB0)
Vendor fixes and mitigations (from advisory)
- Mitigation: Disable the webserver if not required on the affected systems. Restrict the access to Port 80/tcp and 443/tcp to trusted IP address only
- Mitigation: Ensure only qualified personnel is authorized to access the web server
- Mitigation: Only upload trusted trace files
- None Available: Currently no fix is available
Also apply CISA's standard ICS practices: minimize network exposure, keep control networks behind firewalls and isolated from business networks, and use up-to-date secure remote access.
Sources
- CISA advisory ICSA-26-295-14
- Machine-readable CSAF record
- https://cert-portal.siemens.com/productcert/csaf/ssa-591731.json
- https://cert-portal.siemens.com/productcert/html/ssa-591731.html
This page is generated automatically from the CISA advisory text. It is not a substitute for the vendor's guidance; verify affected versions and fixes at the source before making changes to control systems.