CVE-2026-111735 | BDVDB-2026-397721 Detail

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.

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Exploit#

History#

1. Version 12026-10-29Record published in the CVE List.
2. Version 22026-11-05Most recent update recorded in the CVE List.