CVE-2026-63033: A crafted IEC 60870-5-104 I-frame with a declared object count exceeding
what fits in the ASDU body causes...
MEDIUM
CVSS 6.5
Exploit Available
Published: July 30, 2026 | Last Modified: July 30, 2026
Description
A crafted IEC 60870-5-104 I-frame with a declared object count exceeding
what fits in the ASDU body causes InformationObject_ParseObjectAddress
to read one byte past the end of the heap-allocated message buffer.
Ghostwire Analysis — What This Means Practically
- Medium CVSS score indicates moderate risk — exploitation requires specific conditions or results in limited impact.
- Exploit code is reported to be available, increasing the likelihood of active exploitation.
This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.
References