CVE-2026-63350
Critical9.4Affected devices do not properly restrict executable content contained in imported trace files. 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. Successful exploitation could allow attacker-controlled JavaScript to execute in the user’s browser session and perform PLC operations through the web server within the scope of the user’s authorization.
- CVSS
- 9.4v4.0
- EPSS (exploit probability)
- 0.4%34th pct
- CISA KEV
- Not listed
EPSS trendFIRST daily scores, last 90 days
Daily values
| Score date | EPSS | Percentile |
|---|---|---|
| 2026-10-22 | 0.4% | 34.4% |
| 2026-10-21 | 0.4% | 34.4% |
| 2026-10-20 | 0.4% | 34.2% |
| 2026-10-19 | 0.4% | 34.1% |
| 2026-10-18 | 0.4% | 34.0% |
| 2026-10-17 | 0.4% | 34.0% |
| 2026-10-16 | 0.4% | 34.0% |
| 2026-10-15 | 0.4% | 34.0% |
| 2026-10-14 | 0.4% | 33.9% |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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