CVE-2025-27456

HIGH

Published Jul 3, 2025 Modified Feb 6, 2026 CWE-307

Description

The SMB server's login mechanism does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it susceptible to brute-force attacks.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-307 CWE-307

Affected Products

Vendor	Product	Versions
endress	meac300-fnade4_firmware	All
endress	meac300-fnade4	All

References

Advisories & Patches

https://sick.com/psirt https://sick.com/psirt https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.json https://www.sick.com/.well-known/csaf/white/2025/sca-2025-0008.pdf

Other References

https://www.cisa.gov/resources-tools/resources/ics-recommended-practices https://www.endress.com https://www.first.org/cvss/calculator/3.1

Frequently Asked Questions

What is CVE-2025-27456? +

The SMB server's login mechanism does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it susceptible to brute-force attacks. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-27456? +

CVE-2025-27456 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-27456? +

CVE-2025-27456 affects products from endress, specifically: meac300-fnade4, meac300-fnade4_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-27456? +

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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