CVE-2026-59787 PUBLISHED

SNMP trap injection in zabbix_trap_receiver.pl

Assigner: Zabbix
Reserved: 07.07.2026 Published: 05.10.2026 Updated: 05.10.2026

The Perl SNMP trap receiver script shipped with Zabbix does not properly neutralize the ZBXTRAP record delimiter in trap content. This means someone able to send SNMP traps can inject a record targeting another host, resulting in a loss of integrity.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	Low
User Interaction	None

CVSS 4.0

Product Status

Vendor	Zabbix
Product	Zabbix
Versions	Default: unknown affected from 6.0.0 to 6.0.47 (incl.) affected from 7.0.0 to 7.0.28 (incl.) affected from 7.4.0 to 7.4.12 (incl.)

Affected Configurations

Attacker sending crafted SNMP trap payloads to the trap receiver.

Solutions

Update the affected components and replace the deployed zabbix_trap_receiver.pl with the fixed version.

Credits

Zabbix wants to thank stoun for submitting this report on the HackerOne bug bounty platform. reporter

References

https://support.zabbix.com/browse/ZBX-28197

Problem Types

CWE-143: Improper Neutralization of Record Delimiters CWE

Impacts

CAPEC-153: Input Data Manipulation