CVE-2026-23927

5.1 mediumEPSS 0.2%

Medium (5.1) in zabbix zabbix. EPSS 0.2% chance of exploitation in the next 30 days.

A user able to connect to Agent 2 can inject an Oracle TNS connection string via the 'service' parameter. This can lead to Agent 2 connecting to an attacker-controlled server and leaking Oracle database credentials if they are saved in a named session.

Severity

CVSS 4.0

5.1 medium

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:N

CVSS 3.1

6.5 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
CWE: CWE-522
Published: 2026-05-06
Modified: 2026-09-18
Record from: the NVD, synced 2026-10-19

Affected

zabbix:zabbix

References

https://support.zabbix.com/browse/ZBX-27759

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