CVE-2022-45140 | WAGO: Missing Authentication for Critical Function

The configuration backend allows an unauthenticated user to write arbitrary data with root privileges to the storage, which could lead to unauthenticated remote code execution and full system compromise.

Published: 2023-02-27 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-45140 is rated High Risk (75.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 6.26%, 91th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +4.90% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-45140

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-14 1.35% 6.26% +4.90%
2 2026-03-07 1.78% 1.35% -0.42%
3 2025-12-24 — 1.78% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-45140

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2022-45140

Affected software / configurations for CVE-2022-45140

Vendor Product Version Raw CPE
wago 751-9301_firmware >= 16, < 22 cpe:2.3:o:wago:751-9301_firmware:*:*:*:*:*:*:*:*
wago 751-9301_firmware 22 cpe:2.3:o:wago:751-9301_firmware:22:-:*:*:*:*:*:*
wago 751-9301_firmware 23 cpe:2.3:o:wago:751-9301_firmware:23:*:*:*:*:*:*:*
wago 752-8303\/8000-002_firmware >= 18, < 22 cpe:2.3:o:wago:752-8303\/8000-002_firmware:*:*:*:*:*:*:*:*
wago 752-8303\/8000-002_firmware 22 cpe:2.3:o:wago:752-8303\/8000-002_firmware:22:-:*:*:*:*:*:*
wago 752-8303\/8000-002_firmware 23 cpe:2.3:o:wago:752-8303\/8000-002_firmware:23:*:*:*:*:*:*:*
wago pfc100_firmware >= 16, < 22 cpe:2.3:o:wago:pfc100_firmware:*:*:*:*:*:*:*:*
wago pfc100_firmware 22 cpe:2.3:o:wago:pfc100_firmware:22:-:*:*:*:*:*:*
wago pfc100_firmware 23 cpe:2.3:o:wago:pfc100_firmware:23:*:*:*:*:*:*:*
wago pfc200_firmware >= 16, < 22 cpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:*
wago pfc200_firmware 22 cpe:2.3:o:wago:pfc200_firmware:22:-:*:*:*:*:*:*
wago pfc200_firmware 23 cpe:2.3:o:wago:pfc200_firmware:23:*:*:*:*:*:*:*
wago touch_panel_600_advanced_firmware >= 16, < 22 cpe:2.3:o:wago:touch_panel_600_advanced_firmware:*:*:*:*:*:*:*:*
wago touch_panel_600_advanced_firmware 22 cpe:2.3:o:wago:touch_panel_600_advanced_firmware:22:-:*:*:*:*:*:*
wago touch_panel_600_advanced_firmware 23 cpe:2.3:o:wago:touch_panel_600_advanced_firmware:23:*:*:*:*:*:*:*
wago touch_panel_600_marine_firmware >= 16, < 22 cpe:2.3:o:wago:touch_panel_600_marine_firmware:*:*:*:*:*:*:*:*
wago touch_panel_600_marine_firmware 22 cpe:2.3:o:wago:touch_panel_600_marine_firmware:22:-:*:*:*:*:*:*
wago touch_panel_600_marine_firmware 23 cpe:2.3:o:wago:touch_panel_600_marine_firmware:23:*:*:*:*:*:*:*
wago touch_panel_600_standard_firmware >= 16, < 22 cpe:2.3:o:wago:touch_panel_600_standard_firmware:*:*:*:*:*:*:*:*
wago touch_panel_600_standard_firmware 22 cpe:2.3:o:wago:touch_panel_600_standard_firmware:22:-:*:*:*:*:*:*
wago touch_panel_600_standard_firmware 23 cpe:2.3:o:wago:touch_panel_600_standard_firmware:23:*:*:*:*:*:*:*

References for CVE-2022-45140

URL Tags
https://cert.vde.com/en/advisories/VDE-2022-060/ Third Party Advisory
cvelogic Threat Intelligence