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Fencer Vulns
medium 5.3

CVE-2021-27424 json

GE UR family exposure of sensitive information to an unauthorized actor

published 2022-03-23 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14178

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

GE UR firmware versions prior to version 8.1x shares MODBUS memory map as part of the communications guide. GE was made aware a “Last-key pressed” MODBUS register can be used to gain unauthorized information.

Patch / fix

  • GE UR family 8.1x

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-21-075-02 updated cvss 5.3

GE UR Family (Update A)

  • GE Veronva UR B30 <8.10 GE Veronva UR B90 <8.10 GE Veronva UR C30 <8.10 GE Veronva UR C60 <8.10 GE Veronva UR C70 <8.10 GE Veronva UR C95 <8.10
    +13 more products
    GE Veronva UR D30 <8.10 GE Veronva UR D60 <8.10 GE Veronva UR F35 <8.10 GE Veronva UR F60 <8.10 GE Veronva UR G30 <8.10 GE Veronva UR G60 <8.10 GE Veronva UR L30 <8.10 GE Veronva UR L60 <8.10 GE Veronva UR L90 <8.10 GE Veronva UR M60 <8.10 GE Veronva UR N60 <8.10 GE Veronva UR T35 <8.10 GE Veronva UR T60 <8.10
    affected: vendor fix, mitigation “GE recommends users refer to the UR Deployment guide for secure configuration of UR IED and system.” gegridsolutions.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.85% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • GE UR family

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-668 Exposure of Resource to Wrong Sphere

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.