Vulnerability details
CVE-2026-55732
Loytec L-DALILoytec L-GATELoytec L-INXLoytec L-IOBLoytec L-PADLoytec L-ROC
Loytec LINX firmware: Out-of-bounds Read in BACnet packet parsing (bacdt_datetime_to_tod)
CVSS 4.0
8.7High
Official description
Out-of-bounds Read (CWE-125) in BACnet packet parsing (`bacdt_datetime_to_tod`) in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.18 on LINX-A64 allows an unauthenticated remote attacker to crash `linx_a64.exe` and ultimately reboot the device via a malformed BACnet TimeSynchronization or UTC-TimeSynchronization packet with an invalid month value. The same vulnerability affects multiple other Loytec products.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.7High | 4.0 | CVEProject cvelistV5 (CNA) (NCSC.ch) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Loytec | L-DALI | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
| Loytec | L-GATE | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
| Loytec | L-INX | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
| Loytec | L-IOB | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
| Loytec | L-PAD | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
| Loytec | L-ROC | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
| Loytec | L-VIS | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
| Loytec | LIP-ME20xC | v ≤ 8.4.18 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-07-24
- Last updated
- 2026-07-24
- State
- Published
- Assigner (CNA)
- NCSC.ch
Exploit prediction (EPSS)
0.54%
Probability of exploitation in 30 days
45.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-125Out-of-bounds read