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CVE-2023-29054

HIGH
7.4
CVSS Score
Published: April 11, 2023 at 09:03 AM UTC
Updated: October 23, 2026 at 11:10 PM UTC
13 products affected across 1 vendorScalance Xf204-2ba Irt FirmwareScalance Xf201-3p Irt FirmwareScalance Xf202-2p Irt Firmware· also runs on 13 platforms

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Severity
HIGH7.4
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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 X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SIPLUS NET SCALANCE X202-2P IRT (All versions < V5.5.2). The SSH server on affected devices is configured to offer weak ciphers by default. This could allow an unauthorized attacker in a man-in-the-middle position to read and modify any data passed over the connection between legitimate clients and the affected device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Scalance X200-4p Irt Firmware· Siemens
95%
All versionsv < 5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x200-4p-irt (same device)
Scalance X201-3p Irt Firmware· Siemens
95%
All versionsv < 5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x201-3p-irt (same device)
Scalance X201-3p Irt Pro Firmware· Siemens
95%
All versionsv < 5.5.2All versions < V5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x201-3p-irt-pro (same device)
Scalance X202-2irt Firmware· Siemens
95%
All versionsv < 5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x202-2irt (same device)
Scalance X202-2p Irt Firmware· Siemens
95%
All versionsv < 5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x202-2p-irt (same device)
Scalance X202-2p Irt Pro Firmware· Siemens
95%
All versionsv < 5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x202-2p-irt-pro (same device)
Scalance X204IRT Firmware· Siemens
95%
All versionsv < 5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204irt (same device)
Scalance X204IRT Pro Firmware· Siemens
95%
All versionsv < 5.5.2All versions < V5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204irt-pro (same device)
Scalance Xf201-3p Irt Firmware· Siemens
95%
All versionsv < 5.5.2All versions < V5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-xf201-3p-irt (same device)
Scalance Xf202-2p Irt Firmware· Siemens
95%
All versionsv < 5.5.2All versions < V5.5.2
Affected range stops below 5.5.2, so it looks safe — our inference, not a vendor statement
siemens-scalance-xf202-2p-irt (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-479249.pdf

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGH[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-326

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