CVE-2025-55321

Azure Monitor Log Analytics Spoofing Vulnerability

CVSS 9.3 CRITICALEPSS 0.4%CWE-79

Improper neutralization of input during web page generation ('cross-site scripting') in Azure Monitor allows an unauthorized attacker to perform spoofing over a network.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C

Affected products

Microsoft · Azure Monitor

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References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-55321