What is CVE-2025-0693?

CVE-2025-0693 is a medium-severity vulnerability in Aws Sign-In Iam Login Flow, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2025-01-23.

How severe is CVE-2025-0693?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2025-0693 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Aws Sign-In Iam Login Flow

CVE-2025-0693

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.

EPSS: 0.004 (28.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Aws Sign-in Iam Login Flow — versions N/A

Weakness classification (CWE)

Public proof-of-concept exploits

tanjiti/sec_

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)

Frequently asked questions

What is CVE-2025-0693?: CVE-2025-0693 is a medium-severity vulnerability in Aws Sign-In Iam Login Flow, classified under Observable Response Discrepancy. CVSS score: 5.3/10. Published 2025-01-23.
How severe is CVE-2025-0693?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2025-0693 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.