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Fencer Vulns
high 8.4

CVE-2024-3313 json

SUBNET PowerSYSTEM Server and Substation Server Reliance on Insufficiently Trustworthy Component

published 2024-04-09 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-31903

cvss
8.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

Summary

SUBNET Solutions Inc. has identified vulnerabilities in third-party components used in PowerSYSTEM Server 2021 and Substation Server 2021.

Patch / fix

  • SUBNET Solutions PowerSYSTEM Server 4.07.00
  • SUBNET Solutions Substation Server 2021 4.07.00
  • subnet powersystem_center 4.07.00
  • subnet substation_server 4.07.00

Vendor advisories

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

cisa ICSA-24-100-01 updated cvss 8.4

SUBNET PowerSYSTEM Server and Substation Server

  • Subnet Solutions Inc. PowerSYSTEM Server <=4.07.00 Subnet Solutions Inc. Substation Server 2021 <=4.07.00
    affected: fixed in 4.09.00.927 subnet.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
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 4.0 8.6 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.6 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • SUBNET Solutions PowerSYSTEM Server
  • SUBNET Solutions Substation Server 2021
  • subnet powersystem_center
  • subnet substation_server

Classification

Weakness
  • CWE-1357 Reliance on Insufficiently Trustworthy Component

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.