CVE-2026-3509

EUVD-2026-14784
An unauthenticated remote attacker may be able to control the format string of messages processed by the Audit Log of the CODESYS Control runtime system, potentially resulting in a denial‑of‑service (DoS) condition.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CERTVDECNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
codesyscontrol_rte_sl
3.5.17.0 ≤
𝑥
< 3.5.22.0
codesyscontrol_rte_sl
4.1.0.0 ≤
𝑥
< 4.21.0.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://certvde.com/de/advisories/VDE-2026-018