CVE-2026-51535 Denial of service in n/a
Attackers can cause resource exhaustion in OpENer's network processing loop, leading to a denial of service for industrial control systems.
- 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-2026-51535?
CVE-2026-51535 is a high-severity denial of service vulnerability in n/a, published on 8 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In OpENer 2.3.0 (commit 76b95cf), a resource exhaustion (Denial of Service) vulnerability exists in its network processing loop.
Weakness: CWE-400
Which versions are affected by CVE-2026-51535?
How do I fix CVE-2026-51535?
No fix has been published for CVE-2026-51535 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-2026-51535 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51535 exists.
Sources
Also known as GHSA-c2q6-qqhw-6ggr.