CVE-2025-27451: meac300-fnade4 — Fix

Description

For failed login attempts, the application returns different error messages depending on whether the login failed due to an incorrect password or a non-existing username. This allows an attacker to guess usernames until they find an existing one.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-204 CWE-204

CWE-203 CWE-203

Affected Products

Vendor	Product	Versions
endress	meac300-fnade4_firmware	< 0.16.0
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-2025-27451? +

For failed login attempts, the application returns different error messages depending on whether the login failed due to an incorrect password or a non-existing username. This allows an attacker to guess usernames until they find an existing one. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-27451? +

CVE-2025-27451 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-27451? +

CVE-2025-27451 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-2025-27451? +

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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