HOMEVULNERABILITIESCVE-2021-27194
HIGH

CVE-2021-27194

CWE-319Published: March 25, 2021· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official Description

Cleartext transmission of sensitive information in Netop Vision Pro up to and including 9.7.1 allows a remote unauthenticated attacker to gather credentials including Windows login usernames and passwords.

NVD Source

Technical Analysis

CVE-2021-27194 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Microsoft1 product(s)
windows
netop1 product(s)
vision pro
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.mcafee.com/blogs/other-blogs/mcafee-labs/netop-vision-pro-distance-learning-software-is-20-20-in-hindsight
ADVISORYhttps://www.mcafee.com/blogs/other-blogs/mcafee-labs/netop-vision-pro-distance-learning-software-is-20-20-in-hindsight

All References (2)

→
https://www.mcafee.com/blogs/other-blogs/mcafee-labs/netop-vision-pro-distance-learning-software-is-20-20-in-hindsightThird Party Advisory
→
https://www.mcafee.com/blogs/other-blogs/mcafee-labs/netop-vision-pro-distance-learning-software-is-20-20-in-hindsightThird Party Advisory

Quick Facts

CVE IDCVE-2021-27194
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-319
CISA KEVNo
Affected2 vendor(s)
PublishedMar 25, 2021

Related CVEs (CWE-319)

CVE-2025-4378
10.0
CVE-2025-47419
10.0
CVE-2019-17393
9.8
CVE-2018-11422
9.8
CVE-2018-11421
9.8
CVE-2019-5505
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-27194 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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