CVE-2026-111735
HIGH—CVSS v3
—CVSS v2
—
EPSS (exploit probability)
CWE-125CWE
Description
P-Net before 1.0.3 contains an integer underflow in pf_cpm_c_data_ind(). When handling a received cyclic data frame while the consumer is in the FRUN or RUN state, the offset of the APDU status was computed as the frame length minus 4 using 16-bit arithmetic, without checking that the frame is long enough. A crafted short frame makes the offset wrap around, so the function reads outside the receive buffer. This can cause a crash (denial of service) or disclose memory content.
Affected routers (0)
No routers currently mapped to this CVE in our database.