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CVE-2022-26648

HIGH
8.2
CVSS Score
Published: July 12, 2022 at 10:06 AM UTC
Updated: June 17, 2026 at 04:35 AM UTC
58 products affected across 1 vendorScalance XF204 FirmwareScalance XF208 FirmwareScalance Xf206-1 Firmware

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Severity
HIGH8.2
Exploit prediction
EPSS 1.0%
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 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.

Affected

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

Scalance X200-4p Irt Firmware· Siemens
95%
All versions
siemens-scalance-x200-4p-irt (same device)
Scalance X201-3p Irt Firmware· Siemens
95%
All versions
siemens-scalance-x201-3p-irt (same device)
Scalance X202-2irt Firmware· Siemens
95%
All versions
siemens-scalance-x202-2irt (same device)
Scalance X202-2p Irt Firmware· Siemens
95%
All versions
siemens-scalance-x202-2p-irt (same device)
Scalance X202-2p Irt Pro Firmware· Siemens
95%
All versions
siemens-scalance-x202-2p-irt-pro (same device)
Scalance X204-2 Firmware· Siemens
95%
v < 5.2.6
Affected range stops below 5.2.6, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204-2 (same device)
Scalance X204-2fm Firmware· Siemens
95%
v < 5.2.6
Affected range stops below 5.2.6, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204-2fm (same device)
Scalance X204-2ld Firmware· Siemens
95%
v < 5.2.6
Affected range stops below 5.2.6, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204-2ld (same device)
Scalance X204-2ld Ts Firmware· Siemens
95%
v < 5.2.6
Affected range stops below 5.2.6, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204-2ld-ts (same device)
Scalance X204-2ts Firmware· Siemens
95%
v < 5.2.6
Affected range stops below 5.2.6, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204-2ts (same device)

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)

PatchVendor Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-310038.pdf

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

8.2HIGHsiemens
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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