OSV-2025-132 Heap-use-after-free in netsnmp_hex_to_binary
A heap-use-after-free vulnerability in Net-SNMP allows attackers to cause denial of service or potentially execute code via crafted SNMP packets.
- 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-2025-132?
OSV-2025-132 is an use after free vulnerability in net-snmp, published on 17 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=396777457
Crash type: Heap-use-after-free READ 1
Crash state:
netsnmp_hex_to_binary
snmpv3_parse_arg
netsnmp_parse_args
Which versions are affected by OSV-2025-132?
1 open source package ship an affected version, including net-snmp.
| Package | Affected | Fixed in |
|---|---|---|
net-snmp OSS-Fuzz | All versions | None |
How do I fix OSV-2025-132?
No fix has been published for OSV-2025-132 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2025-132 being exploited?
There is no known exploitation of OSV-2025-132 in the wild and no public exploit code.