PT-2026-132315
CVE-2026-111734
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Published
2026-10-29
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Updated
2026-10-29
Description by
CVSS 4.0
7.1
HighMetricsAV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
P-Net before 1.0.3 does not validate the length of a received Ethernet frame in pf eth recv() before reading the EtherType, any VLAN tags and the PROFINET FrameID. The VLAN tag loop had no upper bound, so a truncated frame, or a frame consisting only of VLAN tags, makes the function read past the end of the receive buffer. This can cause a crash (denial of service) or disclose memory content.
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