OSV-2025-564 Heap-buffer-overflow in ndpi_match_host_subprotocol

Not scored Published

A heap buffer overflow in the nDPI library allows attackers to cause denial of service or potentially execute code via crafted network traffic.

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-2025-564?

OSV-2025-564 is a memory corruption vulnerability in ndpi, published on 21 Jul 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=432880859

Crash type: Heap-buffer-overflow READ 2
Crash state:
ndpi_match_host_subprotocol
check_content_type_and_change_protocol
process_request

Which versions are affected by OSV-2025-564?

1 open source package ship an affected version, including ndpi.

PackageAffectedFixed in
ndpi OSS-FuzzAll versionsNone

How do I fix OSV-2025-564?

No fix has been published for OSV-2025-564 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 OSV-2025-564 being exploited?

There is no known exploitation of OSV-2025-564 in the wild and no public exploit code.

Sources

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