CVE-2022-47377Network attack vector

Unauthenticated privilege escalation via password recovery

Published Dec 16, 2022 · Updated Apr 16, 2025

Authentication bypass in SICK SIM2000ST firmware before 1.13.4 allows remote attackers to gain RecoverableUserLevel privileges. The password-recovery mechanism accepts invocation without the authentication rights required for that user level. Network reachability of password recovery is sufficient, exposing system confidentiality, integrity, and availability with repeatable success.

CVSS severity9.8
Critical
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in SICK SIM2000ST firmware before 1.13.4 allows remote attackers to gain RecoverableUserLevel privileges. The password-recovery mechanism accepts invocation without the authentication rights required for that user level. Network reachability of password recovery is sufficient, exposing system confidentiality, integrity, and availability with repeatable success.

The record

CVE
CVE-2022-47377
Published
Dec 16, 2022
Updated
Apr 16, 2025
Vendor
SICK AG
Product
SIM2000ST
Classifications
CWE-306, CWE-640, T1068
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 16, 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=Partnumber 2086502 with firmware version < 1.13.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SICK AG · SIM2000STversion=Partnumber 2086502 with firmware version < 1.13.4

Published CVSS scores

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8SICK AGCVSS: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-640Weak Password Recovery Mechanism for Forgotten Password
T1068Exploitation for Privilege Escalation

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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