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HIGH

CVE-2026-58529

CVSS v3

7.1

HIGH

EPSS Score

1.0 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.

Technical details

Published
2026-07-14
Last Modified
2026-07-14

Frequently asked questions

What is CVE-2026-58529?

Out-of-bounds read in Active Directory Federation Services (AD FS) allows an authorized attacker to disclose information over a network.

Is CVE-2026-58529 actively exploited?

Active exploitation of CVE-2026-58529 has not been confirmed. Its EPSS score was 1.0% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-58529?

CVE-2026-58529 has a CVSS v3 base score of 7.1 (HIGH severity).

Is CVE-2026-58529 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.

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