CVE-2026-12818 DVP-12SE Exposure of Sensitive Information Vulnerability
Attackers can cause denial of service on Delta DVP-12SE PLCs by exploiting unthrottled resource allocation in the Modbus TCP service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12818?
CVE-2026-12818 is a critical denial of service vulnerability in deltaww DVP-12SE, published on 30 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Delta Electronics DVP12SE PLCs are susceptible to a resource allocation vulnerability without limits or throttling (CWE-770) within their Modbus TCP service.
Weakness: CWE-770
Which versions are affected by CVE-2026-12818?
How do I fix CVE-2026-12818?
No fix has been published for CVE-2026-12818 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-12818 being exploited?
There is no known exploitation of CVE-2026-12818 in the wild and no public exploit code.
Sources
Also known as GHSA-4mxr-9xw9-9cr4.