Observable discrepancy in Endress+Hauser MEAC300-FNADE4
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-204.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Endress+Hauser | Endress+Hauser MEAC300-FNADE4 | up to <=0.16.0 | — | No fix listed | CNA |
| Endress+Hauser | Endress+Hauser MEAC300-FNADE4 | — | >=0.17.0 | Patch available | CNA |
- Endress+Hauser MEAC300-FNADE4 VendorEndress+Hauser Affected up to <=0.16.0 Fixed in — No fix listed CNA
- Endress+Hauser MEAC300-FNADE4 VendorEndress+Hauser Affected — Fixed in >=0.17.0 Patch available CNA
Remediation
- Fix · CNA Endress+Hauser MEAC300-FNADE4 (Endress+Hauser) Fixed in >=0.17.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Endress+Hauser MEAC300-FNADE4 — sick.com/psirt
19 records Highest priority Priority MEDIUM 4 MEDIUM, 15 LOW
Other records, highest priority first
- TI-2025-20291 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4Priority MEDIUM 49
- TI-2025-20284 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4Priority MEDIUM 49
- TI-2025-01472 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4Priority MEDIUM 49
- Advisory ·
Endress+Hauser MEAC300-FNADE4 — sick.com/.well-known/csaf/white/2025/sca-2025-0008.pdf
19 records Highest priority Priority MEDIUM 4 MEDIUM, 15 LOW
Other records, highest priority first
- TI-2025-20291 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4Priority MEDIUM 49
- TI-2025-20284 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4Priority MEDIUM 49
- TI-2025-01472 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4Priority MEDIUM 49
Timeline
- 2026-10-02 Threatist record created from CVE-2025-27451
- 2026-10-03 Alias added: GHSA-6gf6-3j9v-j983
References
Advisory 3
More Endress+Hauser vulnerabilities
- TI-2024-06118 Endress+Hauser: Multiple products are vulnerable to code injection CVSS 3.1CRITICAL 9.8
- TI-2025-20291 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4 CVSS 3.1CRITICAL 9.8
- TI-2025-20284 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4 CVSS 3.1CRITICAL 9.8
- TI-2025-01472 Missing brute-force protection in Endress+Hauser MEAC300-FNADE4 CVSS 3.1CRITICAL 9.8
- TI-2025-01470 SQL injection in Endress+Hauser MEAC300-FNADE4 CVSS 3.1HIGH 8.6
- TI-2024-08118 Missing authentication in SICK AG MSC800 CVSS 3.1HIGH 7.5
Sources
- CVE-2025-27451 · CVE Program
- CVE-2025-27451 · NVD
- FIRST EPSS
- GHSA-6gf6-3j9v-j983 · GitHub Advisory Database · CC BY 4.0
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