PT-2025-27780 · Endress+Hauser+2 · Endress+Hauser Meac300-Fnade4+2

Published 2025-07-03 · Updated 2025-07-03 · CVE-2025-27451

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: The product name cannot be determined.

Description: The issue arises from the application's behavior of returning different error messages for failed login attempts, depending on whether the failure was due to an incorrect password or a non-existing username. This distinction allows an attacker to deduce existing usernames by analyzing the error messages received during login attempts.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Side Channel Attack

Weakness Enumeration

CWE-204

CWE-203

Related Identifiers

BDU:2025-11717

CVE-2025-27451

Affected Products

Endress+Hauser Meac300-Fnade4

Meac300-Fnade4

Meac300-Fnade4 Firmware

References · 10

• https://sick.com/.well-known/csaf/white/2025/sca-2025-0008.json · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-27451 · Vendor Advisory
• https://sick.com/.well-known/csaf/white/2025/sca-2025-0008.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-27451 · Security Note
• https://sick.com/psirt · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-11717 · Security Note
• https://first.org/cvss/calculator/3.1 · Note
• https://cisa.gov/resources-tools/resources/ics-recommended-practices · Note
• https://endress.com · Note
• https://twitter.com/CVEnew/status/1940738069914964407 · Twitter Post