by Kastro
Paper/Archive/CVE-2026-58630

CVE-2026-58630

Microsoft Azure App Service for Linux — Azure App Service on Azure Stack Hub Elevation of Privilege Vulnerability

EPSS 0.9%CVSS 10.0
critical.is priorityof 100
42
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 58.6.586 × 2011.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Improper access control in Azure App Service allows an unauthorized attacker to elevate privileges over a network.

Affected

ProductAffectedFixed inSource
Azure App Service for Linux-–CNA

Scores by source

microsoft (CNA)10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-58630