CVE-2026-63356
MEDIUM 5.3Affected devices do not properly sanitize calculated signal names contained in imported CSV trace files before including them in error messages on the Trace page. This could allow an attacker to social engineer an authorized user who holds the function right “Read diagnostics” into importing a specially crafted trace file. Attacker-controlled JavaScript could be executed in the user’s browser session when the resulting error message is displayed.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 8th percentile
Impact if exploited
5.3CVSS 4.0 · MEDIUM
- ConfidentialityLow
- IntegrityLow
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ✓Privileges: No account or privileges required
- ⚠User interaction: Succeeds with passive user activity
- ✓Complexity: No special conditions — reliably repeatable
- ✓Requirements: No special attack requirements
✓ lowers the bar for an attacker · ⚠ raises it
Proof of concept
No public PoC is currently catalogued.
Search for new PoCs
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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Affected
Vendors Siemens
Products Simatic Drive Controller Cpu 1504d Tf Simatic Drive Controller Cpu 1507d Tf Simatic Et 200sp Cpu 1510sp F 1 Pn Simatic Et 200sp Cpu 1510sp 1 Pn Simatic Et 200sp Cpu 1512sp F 1 Pn Simatic Et 200sp Cpu 1512sp 1 Pn Simatic Et 200sp Cpu 1514sp F 2 Pn Simatic Et 200sp Cpu 1514sp 2 Pn Simatic Et 200sp Cpu 1514spt F 2 Pn Simatic Et 200sp Cpu 1514spt 2 Pn 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
Weakness (CWE)
- CWE-79: : Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
References and research data (JSON)
All CVSS metrics
- MEDIUM 6.1 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - MEDIUM 5.3 v4.0 · CNA Primary
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N - MEDIUM 5.3 v4.0 · NVD Secondary
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/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 - MEDIUM 6.1 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-98387 EUVD · EUVD-2026-98387
Technical & other
- https://cert-portal.siemens.com/productcert/html/ssa-591731.htmlCVE record · siemens · Updated 2026-10-13T09:18:48.818Z
NVD · CVE-2026-63356 · Updated 2026-10-15T20:38:04.303