CVE-2026-111735
Integer underflow leads to out-of-bounds read in pf_cpm_c_data_ind()
No known exploitation. No EPSS score yet. Fixed in 1.0.3.
What to do
Find your product and version, then upgrade to the build on the right.
- RT-Labs P-NetAffected: < 1.0.3Upgrade to: 1.0.3Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
What it is
From the CVE record
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.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
No EPSS score yet. New CVEs are usually scored within a few days.
Lifecycle
6 events over 0 days, from the signal feeds we watch.
- Patch availablepatch available, published, weakness classified, att&ck mapped, record updated
Affected products
Technical detail
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
Sources
References in the record
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