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Status published
Medium
CVE-2025-0693
Issue with AWS Sign-in IAM User Login Flow - Possible Username Enumeration
Vulnerability Description
Variable response times in the AWS Sign-in IAM user login flow allowed for the use of brute force enumeration techniques to identify valid IAM usernames in an arbitrary AWS account.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Affected Software
AWS Sign-in IAM Login Flow
Vulnerable Versions:
Unknown
Timeline
Official Publish:
January 23rd, 2025
Last Modified:
October 14th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.