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CVE-2022-34820

HIGH
8.4
CVSS Score
Published: July 12, 2022 at 10:07 AM UTC
Updated: June 17, 2026 at 04:50 AM UTC
30 products affected across 1 vendorSiplus Et 200SP Cp 1543SP 1 Isec Tx Rail FirmwareSiplus Et 200SP Cp 1543SP 1 Isec FirmwareSIMATIC Cp 1243-8 Irc Firmware

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Severity
HIGH8.4
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (All versions < V3.3.46), SIMATIC CP 1243-1 (All versions < V3.3.46), SIMATIC CP 1243-7 LTE EU (All versions < V3.3.46), SIMATIC CP 1243-7 LTE US (All versions < V3.3.46), SIMATIC CP 1243-8 IRC (All versions < V3.3.46), SIMATIC CP 1542SP-1 IRC (All versions >= V2.0 < V2.2.28), SIMATIC CP 1543-1 (All versions < V3.0.22), SIMATIC CP 1543SP-1 (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC (All versions >= V2.0 < V2.2.28), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (All versions >= V2.0 < V2.2.28), SIPLUS NET CP 1242-7 V2 (All versions < V3.3.46), SIPLUS NET CP 1543-1 (All versions < V3.0.22), SIPLUS S7-1200 CP 1243-1 (All versions < V3.3.46), SIPLUS S7-1200 CP 1243-1 RAIL (All versions < V3.3.46). The application does not correctly escape some user provided fields during the authentication process. This could allow an attacker to inject custom commands and execute arbitrary code with elevated privileges.

Affected

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

SIMATIC Cp 1242-7 V2 Firmware· Siemens
95%
v < 3.3.46All versions < V3.3.46
Affected range stops below 3.3.46, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1242-7-v2 (same device)
SIMATIC Cp 1243-1 Firmware· Siemens
95%
v < 3.3.46
Affected range stops below 3.3.46, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1243-1 (same device)
SIMATIC Cp 1243-7 LTE Eu Firmware· Siemens
95%
v < 3.3.46All versions < V3.3.46
Affected range stops below 3.3.46, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1243-7-lte-eu (same device)
SIMATIC Cp 1243-7 LTE /us Firmware· Siemens
95%
v < 3.3.46All versions < V3.3.46
Affected range stops below 3.3.46, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1243-7-lte-us (same device)
SIMATIC Cp 1243-8 Irc Firmware· Siemens
95%
v < 3.3.46All versions < V3.3.46
Affected range stops below 3.3.46, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1243-8-irc (same device)
SIMATIC Cp 1542SP 1 Irc Firmware· Siemens
95%
2.0 ≤ v < 2.2.28
Affected range stops below 2.2.28, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1542sp-1-irc (same device)
SIMATIC Cp 1543-1 Firmware· Siemens
95%
v < 3.0.22
Affected range stops below 3.0.22, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1543-1 (same device)
SIMATIC Cp 1543SP 1 Firmware· Siemens
95%
2.0 ≤ v < 2.2.28
Affected range stops below 2.2.28, so it looks safe — our inference, not a vendor statement
siemens-simatic-cp-1543sp-1 (same device)
Siplus Et 200SP Cp 1542SP 1 Irc Tx Rail Firmware· Siemens
95%
2.0 ≤ v < 2.2.28All versions >= V2.0 < V2.2.28
Affected range stops below 2.2.28, so it looks safe — our inference, not a vendor statement
Siplus Et 200SP Cp 1543SP 1 Isec Firmware· Siemens
95%
2.0 ≤ v < 2.2.28All versions >= V2.0 < V2.2.28
Affected range stops below 2.2.28, so it looks safe — our inference, not a vendor statement

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-517377.pdf

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

8.4HIGHsiemens
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-77CWE-116

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