CVE-2025-59249

HIGH
Published Oct 14, 2025 Modified Oct 28, 2025 CWE-1390

Description

Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network.

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CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-1390 CWE-1390

Affected Products

Vendor Product
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server
microsoft exchange_server

References

Frequently Asked Questions

What is CVE-2025-59249? +
Weak authentication in Microsoft Exchange Server allows an authorized attacker to elevate privileges over a network. It has a CVSS v3.1 base score of 8.8 (HIGH).
How severe is CVE-2025-59249? +
CVE-2025-59249 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2025-59249? +
CVE-2025-59249 affects products from microsoft, specifically: exchange_server. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-59249? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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