CVE Tools
Sign in

CVE-2025-27458

CVE-2025-27458

Published: Jul 3, 2025Updated: Feb 6, 2026 Sources: CVE List NVD BDUCWE-327
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 93.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch 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.

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

meac300-fnade4 firmwareendress
Embedded
ICS / OT / IoT / industrial-network
MEAC300-FNADE4Endress+Hauser Group Services AG
On-prem
ICS / OT / IoT / plc-scada-hmi
Endress+Hauser MEAC300-FNADE4Endress+Hauser
Embedded
ICS / OT / IoT / industrial-network
endresscommercialICS / OT / IoTaka meac300-fnade4, orsg35, orsg45, endress firmware
endress+hauser group services agcommercialICS / OT / IoTaka endress hauser
endress+hausercommercialCHICS / OT / IoT

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

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

Timeline

Published
Jul 3, 2025
Last Updated
Feb 6, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-27458 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows