CVE-2024-42332: New line injection in Zabbix SNMP traps

Severity: low (CVSS 3.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-11-27 · updated 2026-06-17
Weakness: CWE-116

Description

The researcher is showing that due to the way the SNMP trap log is parsed, an attacker can craft an SNMP trap with additional lines of information and have forged data show in the Zabbix UI. This attack requires SNMP auth to be off and/or the attacker to know the community/auth details. The attack requires an SNMP item to be configured as text on the target host.

Affected products

Zabbix: from 6.0.0 before 6.0.35; from 6.4.0 before 6.4.20; from 7.0.0 before 7.0.3 — fixed in 6.0.35, 6.4.20, 7.0.3

How to fix

Upgrade to a fixed version: Zabbix 6.0.35, 6.4.20, 7.0.3. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2024-42332 or the next vulnerability affects your stack