CVE-2022-26648

Name: CVE-2022-26648
Creator: NVD / NIST
Published: 2022-07-12T10:15:10.313+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.2/10EPSS 0.84%

Last modified Jun 17, 2026

CVE-2022-26648 is a high-severity vulnerability rated 8.2/10 on the CVSS scale. A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204-2 (All versions < V5.2.6), SCALANCE X204-2FM (All versions < V5.2.6), SCALANCE X204-2LD (All versions < V5.2.6), SCALANCE X204-2LD TS (All versions < V5.2.6), SCALANCE X204-2TS (All versions < V5.2.6), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE X206-1 (All versions < V5.2.6), SCALANCE X206-1LD (All versions < V5.2.6), SCALANCE X208 (All versions < V5.2.6), SCALANCE X208PRO (All versions < V5.2.6), SCALANCE X212-2 (All versions < V5.2.6), SCALANCE X212-2LD (All versions < V5.2.6), SCALANCE X216 (All versions < V5.2.6), SCALANCE X224 (All versions < V5.2.6), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204 (All versions < V5.2.6), SCALANCE XF204-2 (All versions < V5.2.6), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SCALANCE XF206-1 (All versions < V5.2.6), SCALANCE XF208 (All versions < V5.2.6). Affected devices do not properly validate the GET parameter XNo of incoming HTTP requests. EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204-2 (All versions < V5.2.6), SCALANCE X204-2FM (All versions < V5.2.6), SCALANCE X204-2LD (All versions < V5.2.6), SCALANCE X204-2LD TS (All versions < V5.2.6), SCALANCE X204-2TS (All versions < V5.2.6), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE X206-1 (All versions < V5.2.6), SCALANCE X206-1LD (All versions < V5.2.6), SCALANCE X208 (All versions < V5.2.6), SCALANCE X208PRO (All versions < V5.2.6), SCALANCE X212-2 (All versions < V5.2.6), SCALANCE X212-2LD (All versions < V5.2.6), SCALANCE X216 (All versions < V5.2.6), SCALANCE X224 (All versions < V5.2.6), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204 (All versions < V5.2.6), SCALANCE XF204-2 (All versions < V5.2.6), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SCALANCE XF206-1 (All versions < V5.2.6), SCALANCE XF208 (All versions < V5.2.6). Affected devices do not properly validate the GET parameter XNo of incoming HTTP requests. This could allow an unauthenticated remote attacker to crash affected devices.

Metrics

CVSS 3.1

8.2/10

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

EPSS Probability

0.84%

53.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Scalance X204-2 Firmware	< 5.2.6
Siemens	Scalance X204-2fm Firmware	< 5.2.6
Siemens	Scalance X204-2ld Firmware	< 5.2.6
Siemens	Scalance X204-2ld Ts Firmware	< 5.2.6
Siemens	Scalance X204-2ts Firmware	< 5.2.6
Siemens	Scalance X206-1 Firmware	< 5.2.6
Siemens	Scalance X206-1ld Firmware	< 5.2.6
Siemens	Scalance X208 Firmware	< 5.2.6
Siemens	Scalance X208 Pro Firmware	< 5.2.6
Siemens	Scalance X212-2 Firmware	< 5.2.6
Siemens	Scalance X212-2ld Firmware	< 5.2.6
Siemens	Scalance X216 Firmware	< 5.2.6
Siemens	Scalance X224 Firmware	< 5.2.6
Siemens	Scalance Xf204 Firmware	< 5.2.6
Siemens	Scalance Xf204-2 Firmware	< 5.2.6
Siemens	Scalance Xf206-1 Firmware	< 5.2.6
Siemens	Scalance Xf208 Firmware	< 5.2.6
Siemens	Scalance X200-4p Irt Firmware	All versions
Siemens	Scalance X201-3p Irt Firmware	All versions
Siemens	Scalance X201-3p Irt Pro Firmware	All versions
Siemens	Scalance X202-2irt Firmware	All versions
Siemens	Scalance X202-2p Irt Firmware	All versions
Siemens	Scalance X202-2p Irt Pro Firmware	All versions
Siemens	Scalance X204irt Firmware	All versions
Siemens	Scalance X204irt Pro Firmware	All versions
Siemens	Scalance Xf201-3p Irt Firmware	All versions
Siemens	Scalance Xf202-2p Irt Firmware	All versions
Siemens	Scalance Xf204-2ba Irt Firmware	All versions
Siemens	Scalance Xf204irt Firmware	All versions

References

https://cert-portal.siemens.com/productcert/pdf/ssa-310038.pdfPatch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-310038.pdfPatch, Vendor Advisory

Timeline

Published: Jul 12, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-26648?

How severe is CVE-2022-26648?

CVE-2022-26648 has a CVSS score of 8.2/10 (HIGH severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.

How do I fix CVE-2022-26648?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-26648?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST