CVE-2025-52222 Memory corruption in n/a

High 7.5 Published 8 Apr 2026 Updated 10 Apr 2026

Attackers can cause a Denial of Service on D-Link routers via crafted requests exploiting a buffer overflow in the radius_asp function.

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-2025-52222?

CVE-2025-52222 is a high-severity memory corruption vulnerability in n/a, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

D-Link DI-8003 v16.07.26A1, DI-8500 v16.07.26A1; DI-8003G v17.12.21A1, DI-8200G v17.12.20A1, DI-8200 v16.07.26A1, DI-8400 v16.07.26A1, DI-8004w v16.07.26A1, DI-8100 v16.07.26A1, and DI-8100G v17.12.20A1 were discovered to contain a buffer overflow via the rd_en, rd_auth, rd_acct, http_hadmin, http_hadminpwd, rd_key, and rd_ip parameters in the radius_asp function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted request.

Weakness: CWE-120

Which versions are affected by CVE-2025-52222?

It affects 9 products.

Products include Dlink Di-8003 Firmware, Dlink Di-8003g Firmware, Dlink Di-8004w Firmware, Dlink Di-8100 Firmware, Dlink Di-8100g Firmware, Dlink Di-8200 Firmware and 3 more.

How do I fix CVE-2025-52222?

No fix has been published for CVE-2025-52222 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-52222 being exploited?

There is no known exploitation of CVE-2025-52222 in the wild and no public exploit code.

Sources

Also known as GHSA-gw2h-8xgr-6x93.