> CVE-2026-19206 [LOW]

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PUBLISHED
2026-08-07 14:16
MODIFIED
2026-08-07 14:16
CVSS_SCORE V3
1.9
EPSS (Prob. Exploit)
0.17%
Top 93.5%
DATA SOURCES:
NVD 🔗 2026-08-07 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-11-02

> DESCRIPTION

A security flaw has been discovered in MZ Automation libiec61850 up to 1.6.1. This affects the function SVReceiver_stopThreadless of the file src/sampled_values/sv_subscriber.c of the component ASDU Element Handler. Performing a manipulation results in heap-based buffer overflow. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.6.2 is able to mitigate this issue. The patch is named a96bd674e0238276dd1387d31d52e55229d0771e. The affected component should be upgraded.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Local (L)
Exploit nécessite un accès local au système
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
None (N)
Aucune interaction utilisateur nécessaire
S (Périmètre)
Scope
Unchanged (U)
Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
Low (L)
Interruption partielle du service possible

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
Low
Interruption partielle du service possible

> WEAKNESSES

CWE-119 CWE-122

> CWE DETAILED DESCRIPTIONS

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. | CWE-122: Heap-based Buffer Overflow - The product writes past the end of a buffer that was allocated on the heap.

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

MZ Automation libiec61850 ASDU Element sv_subscriber.c SVReceiver_stopThreadless heap-based overflow

AFFECTED PACKAGES:
Unknown / Unknown
4 versions affected

> HISTORIQUE DES MODIFICATIONS

Première apparition
07/08/2026 14:16
Source: NVD
📊 ENRICHISSEMENT 01/11/2026 06:59
CWE
Champ modifié: Description CWE
Ancienne valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
Nouvelle valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
📊 ENRICHISSEMENT 01/09/2026 06:02
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer - The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buff...
Total des modifications: 2 Dernière mise à jour: 2 days ago

> REFERENCES

https://github.com/mz-automation/libiec61850/commit/a96bd674e0238276dd1387d31d52...
https://github.com/mz-automation/libiec61850/issues/598
https://github.com/mz-automation/libiec61850/issues/598#issuecomment-4858659113
https://github.com/mz-automation/libiec61850/releases/tag/v1.6.2
https://vuldb.com/cve/CVE-2026-19206
https://vuldb.com/submit/864840
https://vuldb.com/vuln/386950
https://vuldb.com/vuln/386950/cti
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