CVE-2026-51541 | BDVDB-2026-347307 Detail

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.

Impact#

Weaknesses#

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Exploit#

History#

1. Version 12026-07-13Record published in the CVE List.
2. Version 22026-07-14Most recent update recorded in the CVE List.