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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| RT-Labs | P-Net | unaffected |
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Project Subscriptions
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Advisories
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Fixes
Solution
Upgrade to P-Net 1.0.3 or later.
Workaround
No workaround given by the vendor.
References
History
Thu, 29 Oct 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Missing length validation of EtherType, VLAN and FrameID fields in pf_eth_recv() | |
| Weaknesses | CWE-125 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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MITRE
Status: PUBLISHED
Assigner: rt-labs
Published:
Updated: 2026-10-29T15:42:10.509Z
Reserved: 2026-10-16T15:50:07.055Z
Link: CVE-2026-111734
Vulnrichment
No data.
NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses