CVE-2026-66349

The MMS server connection handler contains a flaw in its processing of BER-encoded request data. When an MMS confirmed request PDU containing an extended BER tag is received over an established session, the decoder may advance its internal buffer incorrectly due to a missing bounds check. This...

CVE-2026-66349 MZ Automation libiec61850 Out-of-bounds Read

The MMS server connection handler contains a flaw in its processing of BER-encoded request data. When an MMS confirmed request PDU containing an extended BER tag is received over an established session, the decoder may advance its internal buffer incorrectly due to a missing bounds check. This...

CVE-2026-56758

The CVE-2026-56758 issue affects the ACSE layer during MMS connection establishment. Specifically, the AARQ PDU parsing of the calling AP title can be broken if an attacker controls a length value of zero or one, causing the parser to read past the end of a heap buffer. Documented impact in the c...

CVE-2026-56758 MZ Automation libiec61850 Out-of-bounds Read

The ACSE layer contains a flaw in the processing of AARQ PDUs during MMS connection establishment. When parsing certain fields within the calling AP title, an attacker controlled length value of zero or one may cause the parser to read past the end of a heap buffer...

CVE-2026-56758 MZ Automation libiec61850 Out-of-bounds Read

The ACSE layer contains a flaw in the processing of AARQ PDUs during MMS connection establishment. When parsing certain fields within the calling AP title, an attacker controlled length value of zero or one may cause the parser to read past the end of a heap buffer...

PT-2026-66626

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description A flaw exists in the ISO Presentation layer during normal mode negotiation. A missing length check when processing encoded presentation data allows a field with ...

CVE-2026-66349: Out-of-bounds Read

The MMS server connection handler contains a flaw in its processing of BER-encoded request data. When an MMS confirmed request PDU containing an extended BER tag is received over an established session, the decoder may advance its internal buffer incorrectly due to a missing bounds check. This...

CVE-2026-65421: Out-of-bounds Read

The MMS BER decoder contains a flaw in decoding fixed-width BER fields boolean/integer: an attacker-supplied length value is not validated, causing a read past the end of a heap buffer. This leads to termination of the MMS service process and a denial-of-service condition...

CVE-2026-56758: Out-of-bounds Read

The ACSE layer contains a flaw in the processing of AARQ PDUs during MMS connection establishment. When parsing certain fields within the calling AP title, an attacker controlled length value of zero or one may cause the parser to read past the end of a heap buffer...

CVE-2026-63550: Out-of-bounds Read

The MMS BER decoder contains a boundary-handling flaw in the processing of certain fields within confirmed-request messages. When a crafted BER-encoded element is received over an established MMS session TCP port 102, the decoder may advance its internal read position incorrectly, leading to a he...

CVE-2026-50032

A NULL pointer dereference in the MMS Write Named Variable List handler, which may allow a network adjacent attacker to crash the server by sending a WriteRequest with an empty listOfData field...

CVE-2026-49035

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution RCE has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled...

CVE-2026-50032

A NULL pointer dereference in the MMS Write Named Variable List handler, which may allow a network adjacent attacker to crash the server by sending a WriteRequest with an empty listOfData field...

CVE-2026-49035 Stack-based Buffer Overflow in MZ Automation libIEC61850

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution RCE has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled...

CVE-2026-49035 Stack-based Buffer Overflow in MZ Automation libIEC61850

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution RCE has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled...

CVE-2026-49035

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution RCE has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled...

libiec-security-poc

libIEC61850 v1.6.1 — MMS/GOOSE vulnerability PoCs Proof-of-co...

PT-2026-64175

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution RCE has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled...

CVE-2026-50032: NULL Pointer Dereference

A NULL pointer dereference in the MMS Write Named Variable List handler, which may allow a network adjacent attacker to crash the server by sending a WriteRequest with an empty listOfData field...

CVE-2026-49035: Heap-based Buffer Overflow

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution RCE has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled...