CVE-2025-0693

Issue with AWS Sign-in IAM User Login Flow - Possible Username Enumeration

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.

Category

6.9
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory amazon.com
Affected: AWS AWS Sign-in IAM Login Flow
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2025-0693?
CVE-2025-0693 has been scored as a medium severity vulnerability.
How to fix CVE-2025-0693?
To fix CVE-2025-0693, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-0693 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-0693 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-0693?
CVE-2025-0693 affects AWS AWS Sign-in IAM Login Flow.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.