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CVE-2025-27458

CVE-2025-27458

Published: Jul 3, 2025Updated: Feb 6, 2026 Sources: CVE List NVD BDUCWE-327
6.5MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 92.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

The VNC authentication mechanism bases on a challenge-response system where both server and client use the same password for encryption. The challenge is sent from the server to the client, is encrypted by the client and sent back. The server does the same encryption locally and if the responses match it is prooven that the client knows the correct password. Since all VNC communication is unencrypted, an attacker can obtain the challenge and response and try to derive the password from this information.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-327

Affected Products

Endress+Hauser
commercial·CH
Endress+Hauser MEAC300-FNADE4Embedded
ICS / OT / IoT / industrial-network
Endress+Hauser Group Services AG
commercialaka endress hauser
MEAC300-FNADE4On-prem
ICS / OT / IoT / plc-scada-hmi
endress
commercialaka endress firmware, meac300-fnade4, orsg35, orsg45
meac300-fnade4 firmwareEmbedded
ICS / OT / IoT / industrial-network

Exploitability

Official Patch Available
Workaround Available

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://www.endress.com
endress.com
https://sick.com/psirt
sick.com
https://www.cisa.gov/resources-tools/resources/ics-recommended-practices
cisa.gov
and 3 more references View all →

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