CVE-2026-51541
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.
- Affected products
- Openemr
- Opener Project Opener
- = 2.3.0
- CVSS 3.1
- 9.1 CRITICAL
- EPSS
- 0.4% (31th percentile)
- Weakness
- CWE-125
- NVD status
- Analyzed
- Published
- 2026-07-13
No indexed exploits for CVE-2026-51541 yet
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No exploit for CVE-2026-51541 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.