CVE-2026-50103: high-severity vulnerability in MZ Automation libIEC61850
Improper Handling of Syntactically Invalid Structure in MZ Automation libIEC61850
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.1epss 0.3%
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.
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
Affected products
MZ Automation · libIEC61850Related CVEs — MZ Automation libIEC61850
In the same product, most dangerous first.
CVE-2022-2972CRITICALMZ Automation libIEC61850 Stack-Based Buffer OverflowEPSS 1.6%CVE-2022-2970CRITICALMZ Automation libIEC61850 Stack-Based Buffer OverflowEPSS 1.5%CVE-2022-1302HIGHMalformed Goose Message in LibIEC61850 may result in a denial of serviceEPSS 1.1%CVE-2022-2971HIGHMZ Automation libIEC61850 Access of Resource Using Incompatible Type ('Type Confusion')EPSS 1.1%CVE-2022-2973HIGHMZ Automation libIEC61850 NULL Pointer DereferenceEPSS 1.1%CVE-2026-49035CRITICALStack-based Buffer Overflow in MZ Automation libIEC61850EPSS 0.6%