CVE-2026-115795 Details
Description
P-Net before 1.0.3 does not check that a complete block header is present in the received data before reading the next block in DCP Set and Identify requests. If the last block ends at the end of the receive buffer, the block length of the following block is read past the end of the buffer. In addition, a DCP Set block with a length smaller than the two-byte block qualifier makes the length underflow, so the block is processed with a length of 65534 bytes. This can cause a crash (denial of service) or disclose a small amount of memory content. Requires ADJACENT network access.
A vulnerability allowing out-of-bounds read has been identified in P-Net versions prior to 1.0.3. The issue arises because the software does not verify that a complete block header is included in the received data before processing the next block in DCP Set and Identify requests. This oversight can lead to reading the block length of the following block past the end of the buffer, especially if the last block concludes at the end of the receive buffer. Additionally, a DCP Set block with a length smaller than the two-byte block qualifier causes a length underflow, processing the block as 65534 bytes. The vulnerability can result in a crash, causing a denial-of-service condition, or disclosing a small amount of memory content. Exploitation requires adjacent network access.
Users are advised to upgrade to P-Net version 1.0.3 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 29, 2026CISA-ADP
Assessed Nov 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://rt-labs.com/wp-content/uploads/2026/10/RRTL-261019-01.pdf | 4b71179a-3b92-4a9d-b9fc-af8b8ed579ee | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | 4b71179a-3b92-4a9d-b9fc-af8b8ed579ee |
Affected Products
| Product | Versions |
|---|---|
| P-Net | < 1.0.3 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 5, 2026 | CVE Modified | CISA-ADP |
| Oct 29, 2026 | New CVE Received | 4b71179a-3b92-4a9d-b9fc-af8b8ed579ee |