OSV-2025-156 Check failed in CheckUnwind
A check failure in the network protocol detection library causes a crash when processing specific packets, leading to 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 OSV-2025-156?
OSV-2025-156 is a denial of service vulnerability in ndpi, published on 23 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=398053003
Crash type: Check failed
Crash state:
CheckUnwind
ndpi_free_flow_data
fuzz_process_packet.c
Which versions are affected by OSV-2025-156?
1 open source package ship an affected version, including ndpi.
| Package | Affected | Fixed in |
|---|---|---|
ndpi OSS-Fuzz | All versions | None |
How do I fix OSV-2025-156?
No fix has been published for OSV-2025-156 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 OSV-2025-156 being exploited?
There is no known exploitation of OSV-2025-156 in the wild and no public exploit code.