CVE-2019-20892

6.5 mediumEPSS 2.3%

net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in snmplib/snmpusm.c via an SNMPv3 GetBulk request. NOTE: this affects net-snmp packages shipped to end users by multiple Linux distributions, but might not affect an upstream release.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)
CWE: CWE-415
Published: 2020-06-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

net-snmp:net-snmp
oracle:zfs_storage_appliance_kit

References

http://www.openwall.com/lists/oss-security/2020/06/25/4
https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1877027
https://bugzilla.redhat.com/show_bug.cgi?id=1663027
https://github.com/net-snmp/net-snmp/commit/5f881d3bf24599b90d67a45cae7a3eb099cd71c9
https://security.gentoo.org/glsa/202008-12

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