CVE-2026-55732 (GCVE-0-2026-55732)

Vulnerability from cvelistv5 – Published: 2026-07-24 14:00 – Updated: 2026-07-24 14:53
VLAI
Title
Loytec LINX firmware: Out-of-bounds Read in BACnet packet parsing (bacdt_datetime_to_tod)
Summary
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.
Severity
8.7 (High)
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
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Loytec LIP-ME20xC Affected: 0 , ≤ 8.4.18 (custom)
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Loytec L-INX Affected: 0 , ≤ 8.4.18 (custom)
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Loytec L-GATE Affected: 0 , ≤ 8.4.18 (custom)
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Loytec L-ROC Affected: 0 , ≤ 8.4.18 (custom)
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Loytec L-IOB Affected: 0 , ≤ 8.4.18 (custom)
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Loytec L-DALI Affected: 0 , ≤ 8.4.18 (custom)
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Loytec L-VIS Affected: 0 , ≤ 8.4.18 (custom)
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Loytec L-PAD Affected: 0 , ≤ 8.4.18 (custom)
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Credits
Daniel Hulliger, armasuisse CYD Campus Damian Pfammatter, armasuisse CYD Campus
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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