CVE-2022-43989Network attack vector

Unauthenticated privilege escalation via password recovery

Published Nov 1, 2022 · Updated May 5, 2025

Missing authentication in SICK SIM2x00 firmware before 1.2.0 allows remote attackers to obtain the RecoverableUserLevel access level. The password recovery mechanism accepts invocation without the required authentication rights and grants that recoverable user level. No prior privileges or user interaction are required, and the gained level permits actions affecting device confidentiality, integrity, and availability.

CVSS severity9.8
Critical
EPSS probability0.86%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in SICK SIM2x00 firmware before 1.2.0 allows remote attackers to obtain the RecoverableUserLevel access level. The password recovery mechanism accepts invocation without the required authentication rights and grants that recoverable user level. No prior privileges or user interaction are required, and the gained level permits actions affecting device confidentiality, integrity, and availability.

The record

CVE
CVE-2022-43989
Published
Nov 1, 2022
Updated
May 5, 2025
Vendor
SICK AG
Product
SIM2x00
Classifications
CWE-306, T0866
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2022CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=Partnumber 1092673 and 1081902 with firmware version < 1.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SICK AG · SIM2x00version=Partnumber 1092673 and 1081902 with firmware version < 1.2.0

Published CVSS scores

9.8SICK AGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T0866Exploitation of Remote Services

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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