OSV-2025-178 Heap-buffer-overflow in usm_set_user_password

Not scored Published

A heap-buffer-overflow in usm_set_user_password allows attackers to potentially execute arbitrary code or cause denial of service.

Exploited in the wild
Not known
Login needed
Not stated
Attackable
Not stated
Victim action needed
Not stated
Fix
None listed

What is OSV-2025-178?

OSV-2025-178 is a memory corruption vulnerability in net-snmp, published on 28 Feb 2025.

Official description

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=399458050

Crash type: Heap-buffer-overflow WRITE 9
Crash state:
usm_set_user_password
usm_set_password
run_config_handler

Which versions are affected by OSV-2025-178?

1 open source package ship an affected version, including net-snmp.

PackageAffectedFixed in
net-snmp OSS-FuzzAll versionsNone

How do I fix OSV-2025-178?

No fix has been published for OSV-2025-178 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-2025-178 being exploited?

There is no known exploitation of OSV-2025-178 in the wild and no public exploit code.

Sources

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