CVE-2026-111734
P-Net before 1.0.3 does not validate the length of a received Ethernet frame in pf_eth_recv()…
- Risk score
- 43/100
- CVSS
- 7.1 v4.0
- Published
- 29 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 bu…
- Affected
- See advisory
- Fix
- Upgrade the product to 1.0.3 or later.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 7.1 high
References
Original description
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.
Last activity 29 Oct 2026. Patch Forecast updates every hour.