SEPTEMBER 19, 2026
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Case File

CVE-2026-63033

MEDIUM · CVSS 6.5 EPSS 0.26% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-30 · Last synced 2026-08-29

CyberRota Analysis

AI-Generated

A vulnerability exists in the parsing of IEC 60870-5-104 I-frames, where an attacker can exploit a crafted message with an excessive object count, leading to a buffer overflow. This could allow unauthorized access to memory, potentially resulting in data corruption or application crashes. Organizations utilizing systems that process IEC 60870-5-104 protocols should prioritize patching this vulnerability to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-63033
Severity
MEDIUM
CVSS
6.5
EPSS
0.26%

Original NVD 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.