CVE-2025-67841 Denial of service in n/a
An algorithmic complexity flaw in Nordic Semiconductor IronSide SE firmware allows attackers to cause a denial of 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-2025-67841?
CVE-2025-67841 is a high-severity denial of service vulnerability in n/a, published on 15 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Nordic Semiconductor IronSide SE for nRF54H20 before 23.0.2+17 has an Algorithmic complexity issue.
Weakness: CWE-407
Which versions are affected by CVE-2025-67841?
How do I fix CVE-2025-67841?
No fix has been published for CVE-2025-67841 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-2025-67841 being exploited?
There is no known exploitation of CVE-2025-67841 in the wild and no public exploit code.
Sources
Also known as GHSA-wrhr-37c7-3326.