CVE & CISA-KEV Catalog

CVE-2022-33138

HIGH

7.5

CVSS v3

Description

A vulnerability has been identified in SIMATIC MV540 H (All versions < V3.3), SIMATIC MV540 S (All versions < V3.3), SIMATIC MV550 H (All versions < V3.3), SIMATIC MV550 S (All versions < V3.3), SIMATIC MV560 U (All versions < V3.3), SIMATIC MV560 X (All versions < V3.3). Affected devices do not perform authentication for several web API endpoints. This could allow an unauthenticated remote attacker to read and download data from the device.

CWE-306Missing Authentication for Critical Function

How to fix

Remediation Available

simatic mv540 h firmwareNVD

Affected:< 3.3Fixed in:3.3CVE-2022-33138derived from NVD

simatic mv540 s firmwareNVD

Affected:< 3.3Fixed in:3.3CVE-2022-33138derived from NVD

simatic mv550 h firmwareNVD

Affected:< 3.3Fixed in:3.3CVE-2022-33138derived from NVD

simatic mv550 s firmwareNVD

Affected:< 3.3Fixed in:3.3CVE-2022-33138derived from NVD

simatic mv560 u firmwareNVD

Affected:< 3.3Fixed in:3.3CVE-2022-33138derived from NVD

simatic mv560 x firmwareNVD

Affected:< 3.3Fixed in:3.3CVE-2022-33138derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

1.15%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Patch1

cert-portal.siemens.com

Related Vulnerabilities

Other CWE-306 (Missing Authentication for Critical Function) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-10271	High	7.5	100%	KEV + Ransom	-
CVE-2023-42793	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2025-3248	Critical	9.8	100%	KEV	Fix
CVE-2022-1388	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-37415	Critical	9.8	100%	KEV	-
CVE-2023-21839	High	7.5	100%	KEV	-

Embed a live status badge for CVE-2022-33138

Markdown

[![CVE-2022-33138](https://tridentstack.com/cve/badge/CVE-2022-33138.svg)](https://tridentstack.com/cve/CVE-2022-33138)

HTML

<a href="https://tridentstack.com/cve/CVE-2022-33138"><img src="https://tridentstack.com/cve/badge/CVE-2022-33138.svg" alt="CVE-2022-33138"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.