CVE-2026-19259Disclosure

LOWCVSS 1.9 · LOW

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability has been found in MZ Automation libiec61850 up to 1.6.1. The affected element is the function MmsMapping_varAccessSpecToObjectReference of the file src/iec61850/common/iec61850_common.c of the component MMS Protocol Workflow. Such manipulation of the argument GetNamedVariableListAttributesResponse.itemId leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

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0.0/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-119CWE-122

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

2 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 2 signals
Disclosure: 2 classified signals
Peaked 1d ago at 1 mentions (2026-08-07); latest day: 1
2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

2100.0%

Full discourse2 posts

CyberSignal | Cybersecurity News@XQOPTRX45d
Disclosure
⚡ IEC 61850 library hit by heap buffer overflow CVE-2026-19259 affects MZ Automation libiec61850 ≤1.6.1. A flaw in MMS protocol processing can trigger a heap-based buffer overflow. ⚠️ Exploit details have been publicly disclosed. 🔎 Source: Rapid7 / MITRE CVE #ICS #OTSecurity #IEC61850 #CVE #CyberSecurity
Post summary
CVE-2026-19259 is a heap-based buffer overflow in MZ Automation's libiec61850, with publicly disclosed exploit details but no PoC, patch, or indication of active exploitation.
00000117
34 followersView on X
Abhayvargheze@Abhayvargheze46d
Disclosure
CVE-2026-19259 MZ Automation libiec61850 MMS Protocol Workflow iec61850common.c MmsMappingvarAccessSpecToObjectReference heap-based overflow 🎯 Impact: Gold ↑ | USD → | Rates → 🕐 7:36 PM IST
Post summary
The post discloses CVE-2026-19259 as a heap-based overflow in MZ Automation’s libiec61850 implementation, without mentioning PoC, exploitation, patch, or active deployment.
0000045
551 followersView on X

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