Status: UPDATED | Advisory ID: CVE-2026-65423
| CVE | CVE-2026-65423 |
| CVSS Score / Version | 8.8 (High) / CVSS v3.1 |
| Updated | 2026-09-03 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | o6 Automation open62541 |
| Classified as | CWE-190 (Integer Overflow or Wraparound) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| o6 Automation | open62541 |
| Subsystems | General OT |
| Sectors | Multiple |
An integer overflow in the UA_Variant arrayDimensions product
computation in open62541 may allow a remote attacker to trigger an
out-of-bounds write.
Monitor o6 Automation's web page for any future patch releases.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-65423 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-65423 |