8.7

CVE-2026-76992

Uncontrolled Memory Allocation in CODESYS Gateway Client

The CODESYS Gateway Client allocates memory based on a size field in a gateway response without enforcing an appropriate upper limit. An unauthenticated remote attacker controlling a malicious gateway can exploit this behavior to trigger excessive memory consumption, resulting in a denial-of-service condition thus leading to a total loss of availablity.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerCODESYS
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Produkt Development System 3
Default Statusunaffected
Version 3.0.0.0
Version < 3.5.22.40
Status affected
HerstellerCODESYS
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Produkt Gateway
Default Statusunaffected
Version 3.0.0.0
Version < 3.5.22.40
Status affected
HerstellerCODESYS
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Produkt Edge Gateway for Windows
Default Statusunaffected
Version 3.0.0.0
Version < 3.5.22.40
Status affected
HerstellerCODESYS
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Produkt HMI (SL)
Default Statusunaffected
Version 3.0.0.0
Version < 3.5.22.40
Status affected
HerstellerCODESYS
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Produkt OPC DA Server SL
Default Statusunaffected
Version 3.0.0.0
Version < 3.5.22.40
Status affected
HerstellerCODESYS
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Produkt PLCHandler
Default Statusunaffected
Version 3.0.0.0
Version < 3.5.22.40
Status affected
HerstellerCODESYS
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Produkt Runtime Toolkit
Default Statusunaffected
Version 3.0.0.0
Version < 3.5.22.40
Status affected
HerstellerCODESYS
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Produkt Edge Gateway for Linux
Default Statusunaffected
Version 3.15.0.0
Version < 4.23.0.0
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.235
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
info@cert.vde.com 8.7 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/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
info@cert.vde.com 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-770 Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.

https://www.certvde.com/en/advisories/VDE-2026-094/