CVE-2026-8312A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the expmt.exe (Siman) component.
Updated under an hour ago ()
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It affects rockwellautomation arena. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A security issue exists within Arena® Simulation due to a memory corruption vulnerability in the expmt.exe (Siman) component. The vulnerability stems from improper validation of user-supplied data, which can result in an out-of-bounds write. An attacker could leverage this vulnerability to execute arbitrary code in the context of the current process by convincing a user to open a malicious file.
- CVSS
- 7.3 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
rockwellautomation arena rockwellautomation:arena | before 17.00.01 | NVD |
References
- https://www.rockwellautomation.com/en-us/trust-center/security-advisories/advisory.SD1784.htmlvendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.