HOMEVULNERABILITIESCVE-2021-27422
HIGH

CVE-2021-27422

CWE-200Published: March 23, 2022· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

GE UR firmware versions prior to version 8.1x web server interface is supported on UR over HTTP protocol. It allows sensitive information exposure without authentication.

NVD Source

Technical Analysis

CVE-2021-27422 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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), with a CVSS base score of 7.5.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

ge38 product(s)
multilin b30 firmwaremultilin b30multilin b90 firmwaremultilin b90multilin c60 firmwaremultilin c60multilin c70 firmwaremultilin c70multilin c95 firmwaremultilin c95multilin d30 firmwaremultilin d30+26
Source: NVD CPE · 38 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.cisa.gov/uscert/ics/advisories/icsa-21-075-02
ADVISORYhttps://www.gegridsolutions.com/Passport/Login.aspx
ADVISORYhttps://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02
ADVISORYhttps://www.gegridsolutions.com/Passport/Login.aspx

All References (4)

→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02Mitigation · Third Party Advisory · US Government Resource
→
https://www.gegridsolutions.com/Passport/Login.aspxPermissions Required · Vendor Advisory
→
https://www.cisa.gov/uscert/ics/advisories/icsa-21-075-02Mitigation · Third Party Advisory · US Government Resource
→
https://www.gegridsolutions.com/Passport/Login.aspxPermissions Required · Vendor Advisory

Quick Facts

CVE IDCVE-2021-27422
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-200
CISA KEVNo
Affected1 vendor(s)
PublishedMar 23, 2022

Related CVEs (CWE-200)

CVE-2010-1230
10.0
CVE-2015-2897
10.0
CVE-2008-0082
10.0
CVE-2008-3914
10.0
CVE-2011-0376
10.0
CVE-2015-0987
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-27422 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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