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Vulnerabilities CVE-2026-51541

CVE-2026-51541

None
Open
TLP:CLEAR
NVD CVE.org
Ransomware

AI Analysis

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Description

OpENer 2.3.0 (commit 76b95cf) has an out-of-bounds read issue in CIP message parsing when handling malformed explicit requests with a forged EPath size. An attacker can send a valid ENIP SendRRData frame carrying a very short CIP payload whose path_size field claims that many more path words are present than are actually available. Because the parser trusts the attacker-controlled path_size and continues decoding path segments without a remaining-length boundary, it reads beyond the end of the stack receive buffer.

Details

EPSS Score
0.42%

35.1th percentile

Confidence
90%
Published
Jul 13, 2026
Last Modified
Jul 14, 2026
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