CVE-2019-20892 - CVE House
Back to Database
Status published Medium CVE-2019-20892

net-snmp before 5.8.1.pre1 has a double free in usm_free_usmStateReference in...

Vulnerability Description

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2019-20892

Credits & Attribution

No credits recorded in the NVD database.

References

More from net-snmp

View All →
CVE-2025-68615
Net-SNMP snmptrapd crash
Critical 9.8
CVE-2022-44793
handle_ipv6IpForwarding in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through 5.9.3 has a...
Unknown 0
CVE-2022-44792
handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a...
Unknown 0
CVE-2022-24810
net-snmp: A malformed OID in a SET to the nsVacmAccessTable can cause a NULL pointer dereference.
Medium 6.5
CVE-2022-24809
net-snmp: A malformed OID in a SET request to NET-SNMP-AGENT-MIB::nsLogTable can cause a NULL pointer dereference
Medium 6.5

Affected Vendor

Affected Software

net-snmp, zfs storage appliance kit
Vulnerable Versions:
0, 8.8

Timeline

Official Publish: June 25th, 2020
Last Modified: August 5th, 2024
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.