CVE-2025-0695 Denial of service in Frozen
An attacker can crash applications using the Cesanta Frozen library by sending maliciously crafted JSON input, causing 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-2025-0695?
CVE-2025-0695 is a medium-severity denial of service vulnerability in Cesanta Frozen, published on 27 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An Allocation of Resources Without Limits or Throttling vulnerability in Cesanta Frozen versions less than 1.7 allows an attacker to induce a crash of the component embedding the library by supplying a maliciously crafted JSON as input.
Weakness: CWE-770
Which versions are affected by CVE-2025-0695?
How do I fix CVE-2025-0695?
No fix has been published for CVE-2025-0695 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-2025-0695 being exploited?
There is no known exploitation of CVE-2025-0695 in the wild and no public exploit code.
Sources
Also known as GHSA-59j2-vr29-mmmc.