CVE-2026-8047
Out-of-bounds Write in CODESYS Control
- State
- Published
- Severity
- 8.7 High
- Published
- May 26, 2026
- Updated
- May 26, 2026
- Reserved
- May 6, 2026
Description
The affected products perform improper length checking when parsing incoming HTTP requests, resulting in a size-limited out-of-bounds write. An unauthenticated remote attacker can exploit this flaw to cause a denial of service via a system crash on the affected device.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | 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 | CERTVDE |
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CERTVDE |
Weaknesses
- CWE-1284 Improper Validation of Specified Quantity in Input
Affected Products
| Product | Versions |
|---|---|
CODESYS Control RTE (SL)CODESYS |
|
CODESYS Control RTE (for Beckhoff CX) SLCODESYS |
|
CODESYS Control Win (SL)CODESYS |
|
CODESYS HMI (SL)CODESYS |
|
CODESYS Runtime ToolkitCODESYS |
|
CODESYS Control for BeagleBone SLCODESYS |
|
CODESYS Control for emPC-A/iMX6 SLCODESYS |
|
CODESYS Control for IOT2000 SLCODESYS |
|
CODESYS Control for Linux ARM SLCODESYS |
|
CODESYS Control for Linux SLCODESYS |
|
CODESYS Control for PFC100 SLCODESYS |
|
CODESYS Control for PFC200 SLCODESYS |
|
CODESYS Control for PLCnext SLCODESYS |
|
CODESYS Control for Raspberry Pi SLCODESYS |
|
CODESYS Control for WAGO Touch Panels 600 SLCODESYS |
|
CODESYS Virtual Control SLCODESYS |
|
References
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