CVE-2022-2103Network attack vector

File disclosure and executable writes via weak credentials

Published Jun 24, 2022 · Updated Apr 16, 2025

Improper access control in Sécheron SEPCOS firmware allows remote attackers with weak credentials to read and write files through FTP. The FTP service exposes its TCP file-transfer interface without adequately enforcing credential strength, permitting access to sensitive files and remotely executable directories. Network reachability of the open FTP port and possession or guessing of weak credentials are required; successful access permits file disclosure and executable-content placement.

CVSS severity9.8
Critical
EPSS probability1.05%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Sécheron SEPCOS firmware allows remote attackers with weak credentials to read and write files through FTP. The FTP service exposes its TCP file-transfer interface without adequately enforcing credential strength, permitting access to sensitive files and remotely executable directories. Network reachability of the open FTP port and possession or guessing of weak credentials are required; successful access permits file disclosure and executable-content placement.

The record

CVE
CVE-2022-2103
Published
Jun 24, 2022
Updated
Apr 16, 2025
Vendor
Sécheron
Product
SEPCOS Control and Protection Relay Firmware
Classifications
CWE-284, CWE-522, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions <1.23.21 changes=[{"at":"1.24.8","status":"unaffected"},{"at":"1.25.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Sécheron · SEPCOS Control and Protection Relay Firmwareversion=All versions <1.23.21 changes=[{"at":"1.24.8","status":"unaffected"},{"at":"1.25.3","status":"unaffected"}]

Published CVSS scores

9.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
6.4NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:N
9.8ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
CWE-522Insufficiently Protected Credentials
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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