In Advantech WebAccess, Versions 8.4.2 and prior. A stack-based buffer overflow vulnerability caused by a lack of proper validation of the length of user-supplied data may allow remote code execution.
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
The product writes data past the end, or before the beginning, of the intended buffer.
| Link | Tags |
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| https://www.us-cert.gov/ics/advisories/icsa-20-086-01 | third party advisory us government resource |