EUVD-2026-60738
GHSA-j6gv-xg9q-8h4p
Severity by source
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Adjacent network access and authenticated low-privilege session are required per description and CVSS 4.0 vector; impact is limited to availability on the vulnerable frontend system only.
AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Primary rating from Vendor (Zabbix).
CVSS VectorVendor: Zabbix
Lifecycle Timeline
1DescriptionCVE.org
An authenticated user is able to cause disproportionate CPU load on the Frontend webserver by sending specifically crafted requests to the Frontend validate.api.exists action, leading to potential denial of service.
AnalysisAI
Zabbix Frontend's validate.api.exists action can be exploited by authenticated, adjacent-network users to trigger disproportionate CPU consumption on the webserver, resulting in potential denial of service. All Zabbix versions are indicated as affected per vendor-supplied CPE data (cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:*), and the vulnerability is rooted in CWE-405 asymmetric resource amplification. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated Zabbix session with at least low-level user privileges (PR:L per CVSS 4.0 vector), which explicitly excludes unauthenticated external attackers. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.1 with vector AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N classifies this as a medium-severity, availability-only vulnerability with no confidentiality or integrity impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch version has been independently confirmed from the available data; the Zabbix support ticket at https://support.zabbix.com/browse/ZBX-28072 should be monitored closely for patch release announcements and exact fix version details. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same technique Denial Of Service
View allVendor StatusVendor
SUSE
Severity: Low| Product | Status |
|---|---|
| SUSE Linux Enterprise High Performance Computing 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP5 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | Not-Affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP3 | Not-Affected |
| SUSE Linux Enterprise High Performance Computing 12 SP4 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP3-BCL | Not-Affected |
| SUSE Linux Enterprise Server 12 SP3-ESPOS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP3-LTSS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP4 | Not-Affected |
| SUSE Linux Enterprise Server 12 SP4-ESPOS | Not-Affected |
| SUSE Linux Enterprise Server 12 SP4-LTSS | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | Not-Affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | Not-Affected |
| SUSE OpenStack Cloud 8 | Not-Affected |
| SUSE OpenStack Cloud 9 | Not-Affected |
| SUSE OpenStack Cloud Crowbar 8 | Not-Affected |
| SUSE OpenStack Cloud Crowbar 9 | Not-Affected |
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External POC / Exploit Code
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