CVE-2026-115795 Out-of-bounds read of DCP block header in DCP Set and Identify request parsing
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-115795?
CVE-2026-115795 is a medium-severity vulnerability in RT-Labs P-Net, published on 29 Oct 2026.
Official 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.
Weakness: CWE-125
Which versions are affected by CVE-2026-115795?
How do I fix CVE-2026-115795?
No fix has been published for CVE-2026-115795 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-115795 being exploited?
There is no known exploitation of CVE-2026-115795 in the wild and no public exploit code.
Sources
Also known as GHSA-8qv2-6w52-jhrq.