CVE-2020-25226

CRITICAL
9.8
CVSS Score
Published: January 12, 2021 at 08:18 PM UTC
Updated: June 17, 2026 at 03:06 AM UTC
132 products affected across 1 vendorScalance XF204 FirmwareScalance X308-2ld FirmwareScalance X308-2lh+ Firmware

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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%

Description

A vulnerability has been identified in SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < V5.2.5), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0). The web server of the affected devices contains a vulnerability that may lead to a buffer overflow condition. An attacker could cause this condition on the webserver by sending a specially crafted request. The webserver could stop and not recover anymore.

Affected

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

v < 5.5.0
Affected range stops below 5.5.0, so it looks safe — our inference, not a vendor statement
siemens-scalance-x200-4pirt (same device)
v < 5.5.0
Affected range stops below 5.5.0, so it looks safe — our inference, not a vendor statement
siemens-scalance-x201-3pirt (same device)
v < 5.5.0
Affected range stops below 5.5.0, so it looks safe — our inference, not a vendor statement
siemens-scalance-x202-2irt (same device)
v < 5.5.0
Affected range stops below 5.5.0, so it looks safe — our inference, not a vendor statement
siemens-scalance-x202-2pirt (same device)
v < 5.5.0
Affected range stops below 5.5.0, so it looks safe — our inference, not a vendor statement
siemens-scalance-x202-2pirt-siplus-net (same device)
v < 5.5.0
Affected range stops below 5.5.0, so it looks safe — our inference, not a vendor statement
siemens-scalance-x204irt (same device)
All versions
siemens-scalance-x307-3 (same device)
All versions
siemens-scalance-x307-3ld (same device)
All versions
siemens-scalance-x308-2 (same device)
All versions
siemens-scalance-x308-2ld (same device)

Remediation

No guide yet

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

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-122CWE-787

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