CVE-2026-50103 (GCVE-0-2026-50103)

Vulnerability from cvelistv5 – Published: 2026-07-23 20:50 – Updated: 2026-07-23 20:50
VLAI
Title
Improper Handling of Syntactically Invalid Structure in MZ Automation libIEC61850
Summary
A NULL pointer dereference in the L2 GOOSE and R-GOOSE shared parser, which may allow a network-adjacent attacker to crash a subscribing application by sending a crafted GOOSE frame containing a malformed TLV value.
Severity
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CWE
  • CWE-228 - Improper Handling of Syntactically Invalid Structure
Assigner
References
Impacted products
Vendor Product Version
MZ Automation libIEC61850 Affected: 1.0.0 , ≤ 1.6.1 (custom)
Create a notification for this product.
Credits
Abhinav Agarwal reported this vulnerability to CISA
Show details on NVD website
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    "dateReserved": "2026-06-09T20:01:29.578Z",
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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 patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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