Medium severity · published Oct 29, 2026
CVE-2026-115795
Out-of-bounds read of DCP block header in DCP Set and Identify request parsing
New
5.3
CVSS
–
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PN
P-Net · RT-Labs
before 1.0.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-115795
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-115795
rt-labs.com
https://rt-labs.com/wp-content/uploads/2026/10/RRTL-261019-01.pdf
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