CVE-2026-52134

CVE-2026-52134 affects libiec61850 v1.6, in the parseGoosePayload() function (/goose/goose_receiver.c). The issue allows bypassing authentication via captured GOOSE frames due to inadequate handling of replayed/stale frames in the GOOSE subscriber path, potentially delivering older state data to ...

Linux Distros Unpatched Vulnerability : CVE-2026-63033

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A crafted IEC 60870-5-104 I-frame with a declared object count exceeding what fits in the ASDU body causes InformationObjectParseObjectAddress to read one byte...

CVE-2026-66720

The GOOSE subscriber component improperly validates the UTC timestamp field in unauthenticated IEC 61850 GOOSE EtherType 0x88B8 Layer-2 multicast messages. A specially crafted GOOSE frame containing an undersized timestamp field can trigger a heap out-of-bounds read during message processing,...

UBUNTU-CVE-2026-61893

A crafted IEC 60870-5-104 I-frame with TypeID 104 CTSNA1 and an inflated object count causes TestCommandgetFromBuffer to read one byte past the end of the heap-allocated message buffer...

CVE-2026-63033

The connected records identify this CVE as affecting MZ Automation’s lib60870 library and describe an out-of-bounds read: A crafted IEC 60870-5-104 I-frame with a declared object count that exceeds the ASDU body causes InformationObject_ParseObjectAddress to read one byte past the end of the heap...

PT-2026-66630

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description A crafted IEC 60870-5-104 I-frame with TypeID 104 C TS NA 1 and an inflated object count causes the TestCommand getFromBuffer function to read one byte past the...

PT-2026-62010

Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, safe-extract.py extracts uploaded archives with no limit on entry count, directory depth, total entries, or output size. A small malicious archive containing a large number of directory or file entries causes the filebeat...

PT-2026-62011

Malcolm is a network traffic analysis tool suite. Prior to version 26.07.0, safe-extract.py protects file extraction with libarchive's secure flags, but creates directory entries with a raw os.makedirsos.path.joindest, entry.pathname that has no traversal protection. An uploaded malicious archive...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-24515)

In libexpat before 2.7.4, XMLExternalEntityParserCreate does not copy unknown encoding handler user data, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-32776)

libexpat before 2.7.5 allows a NULL pointer dereference with empty external parameter entity content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-8479)

IEC 60870-5-104 used in bidirectional mode is vulnerable to a NULL pointer dereference; if a specially crafted sequence of messages is sent for a certain time, this causes Denial of Service impact. Product is only affected if IEC 60870-5-104 functionality in bidirectional mode BCI is configured...

Hitachi Energy RTU500 NULL Pointer Dereference (CVE-2026-32778)

libexpat before 2.7.5 allows a NULL pointer dereference in the function setContext on retry after an earlier out-of-memory condition, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit...

Hitachi Energy RTU500 Infinite Loop (CVE-2026-32777)

libexpat before 2.7.5 allows an infinite loop while parsing DTD content, causing Denial of Service impact. Product is only affected if IEC 61850 functionality is configured. This plugin only works with Tenable.ot. Please visit https://www.tenable.com/products/tenable-ot for more information...

CVE-2026-8479

IEC 60870-5-104 used in bidirectional mode in RTU500 is vulnerable for a NULL pointer dereferencing, if a specially crafted sequence of messages is sent for a certain time, causing Denial of Service impact. Product is only affected if IEC 60870-5-104 functionality in bidirectional mode BCI is...

EUVD-2026-31814

IEC 60870-5-104 used in bidirectional mode in RTU500 is vulnerable for a NULL pointer dereferencing, if a specially crafted sequence of messages is sent for a certain time, causing Denial of Service impact. Product is only affected if IEC 60870-5-104 functionality in bidirectional mode BCI is...

CVE-2026-8479

IEC 60870-5-104 used in bidirectional mode in RTU500 is vulnerable for a NULL pointer dereferencing, if a specially crafted sequence of messages is sent for a certain time, causing Denial of Service impact. Product is only affected if IEC 60870-5-104 functionality in bidirectional mode BCI is...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Firewire: Fix for memory leak in the payload of the request subaction to the IEC 61883-1 FCP region. This patch applies to Linux kernel versions v2.6.33 or later. For the request subaction to the IEC 61883-1 FCP region, the Linux...

CVE-2025-3756

A vulnerability exists in the command handling of the IEC 61850 communication stack included in the product revisions listed as affected in this CVE. An attacker with access to IEC 61850 networks could exploit the vulnera bility by using a specially crafted 61850 packet, forcing the communication...

PT-2026-32485

Name of the Vulnerable Software and Affected Versions AC800M System 800xA versions 6.0.0x through 6.0.0303.0 AC800M System 800xA versions 6.1.0x through 6.1.0031.0 AC800M System 800xA versions 6.1.1x through 6.1.1202.0 AC800M System 800xA versions 6.2.0x through 6.2.0006.0 Symphony Plus SD Series...

CritBench: A Framework for Evaluating Cybersecurity Capabilities of Large Language Models in IEC 61850 Digital Substation Environments

The advancement of Large Language Models LLMs has raised concerns regarding their dual-use potential in cybersecurity. Existing evaluation frameworks overwhelmingly focus on Information Technology IT environments, failing to capture the constraints, and specialized protocols of Operational...