Vulnerability · Published Aug 4, 2025 · Assigned by CERTVDE
CVE-2025-41691CODESYS Control DoS via Unauthenticated NULL Pointer Dereference
High 7.5
In plain English
A high-severity null pointer dereference in Control for BeagleBone SL from CODESYS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 49.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An unauthenticated remote attacker may trigger a NULL pointer dereference in the affected CODESYS Control runtime systems by sending specially crafted communication requests, potentially leading to a denial-of-service (DoS) condition.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CODESYS | Control RTE (SL) | 3.5.21.10 – before 3.5.21.20 |
| CODESYS | Control RTE (for Beckhoff CX) SL | 3.5.21.10 – before 3.5.21.20 |
| CODESYS | Control Win (SL) | 3.5.21.10 – before 3.5.21.20 |
| CODESYS | HMI (SL) | 3.5.21.10 – before 3.5.21.20 |
| CODESYS | Control for BeagleBone SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for emPC-A/iMX6 SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for IOT2000 SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for Linux ARM SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for Linux SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for PFC100 SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for PFC200 SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for PLCnext SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for Raspberry Pi SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Control for WAGO Touch Panels 600 SL | 4.16.0.0 – before 4.17.0.0 |
| CODESYS | Virtual Control SL | 4.16.0.0 – before 4.17.0.0 |
Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H