CVE-2022-43767

HIGH

7.5

CVSS Score

Published: April 11, 2023 at 09:02 AM UTC

Updated: October 23, 2026 at 11:10 PM UTC

31 products affected across 1 vendorSiplus Tim 1531 Irc FirmwareTim 1531 Irc FirmwareSiplus Et 200SP Cp 1543SP 1 Isec Tx Rail Firmware· also runs on 24 platforms

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Severity

HIGH7.5

Exploit prediction

EPSS 0.7%

SSVC

No known exploit

Description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (6GK7242-7KX31-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 (6GK7243-1BX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE EU (6GK7243-7KX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE US (6GK7243-7SX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1243-8 IRC (6GK7243-8RX30-0XE0) (All versions < V3.4.29), SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) (All versions < V2.3), SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) (All versions < V2.3), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.3), SIMATIC CP 443-1 (6GK7443-1EX30-0XE0) (All versions < V3.3), SIMATIC CP 443-1 (6GK7443-1EX30-0XE1) (All versions < V3.3), SIMATIC CP 443-1 Advanced (6GK7443-1GX30-0XE0) (All versions < V3.3), SIPLUS ET 200SP CP 1542SP-1 IRC TX RAIL (6AG2542-6VX00-4XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC (6AG1543-6WX00-7XE0) (All versions < V2.3), SIPLUS ET 200SP CP 1543SP-1 ISEC TX RAIL (6AG2543-6WX00-4XE0) (All versions < V2.3), SIPLUS NET CP 1242-7 V2 (6AG1242-7KX31-7XE0) (All versions < V3.4.29), SIPLUS NET CP 443-1 (6AG1443-1EX30-4XE0) (All versions < V3.3), SIPLUS NET CP 443-1 Advanced (6AG1443-1GX30-4XE0) (All versions < V3.3), SIPLUS S7-1200 CP 1243-1 (6AG1243-1BX30-2AX0) (All versions < V3.4.29), SIPLUS S7-1200 CP 1243-1 RAIL (6AG2243-1BX30-1XE0) (All versions < V3.4.29), SIPLUS TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.3.6), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.3.6). The webserver of the affected products contains a vulnerability that may lead to a denial of service condition. An attacker may cause a denial of service situation of the webserver of the affected product.

Affected

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

SIMATIC Cp 1242-7 V2 Firmware · Siemens

95%

All versions

Affected range stops below V3.4.29, so it looks safe — our inference, not a vendor statement

siemens-simatic-cp-1242-7-v2 (same device)

SIMATIC Cp 1243-1 DNP3 Firmware · Siemens

95%

All versions

siemens-simatic-cp-1243-1-dnp3 (same device)

SIMATIC Cp 1243-1 Firmware · Siemens

95%

All versions

siemens-simatic-cp-1243-1 (same device)

SIMATIC Cp 1243-1 Iec Firmware · Siemens

95%

All versions

siemens-simatic-cp-1243-1-iec (same device)

SIMATIC Cp 1243-7 LTE Eu Firmware · Siemens

95%

All versions

Affected range stops below V3.4.29, 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%

All versions

Affected range stops below V3.4.29, 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%

All versions

Affected range stops below V3.4.29, so it looks safe — our inference, not a vendor statement

siemens-simatic-cp-1243-8-irc (same device)

SIMATIC Cp 1542SP 1 Firmware · Siemens

95%

All versions

Affected range stops below 2.3, so it looks safe — our inference, not a vendor statement

Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement

SIMATIC Cp 1542SP 1 Irc Firmware · Siemens

95%

All versions

siemens-simatic-cp-1542sp-1-irc (same device)

SIMATIC Cp 1543SP 1 Firmware · Siemens

95%

All versions

siemens-simatic-cp-1543sp-1 (same device)

Runs on — not affected

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

Simatic Cp 1242-7 V2 · Siemens

95%

SIMATIC CP 1243-1 · Siemens

95%

Affected range stops below V3.4.29, so it looks safe — our inference, not a vendor statement

SIMATIC CP 1243-1 DNP3 · Siemens

95%

Affected range stops below V3.4.29, so it looks safe — our inference, not a vendor statement

SIMATIC CP 1243-1 IEC · Siemens

95%

Affected range stops below V3.4.29, so it looks safe — our inference, not a vendor statement

Simatic Cp 1243-7 Lte Eu · Siemens

95%

Simatic Cp 1243-7 Lte Us · Siemens

95%

Simatic Cp 1243-8 Irc · Siemens

95%

SIMATIC Cp 1542SP 1 Firmware · Siemens

95%

Affected range stops below 2.3, so it looks safe — our inference, not a vendor statement

Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement

SIMATIC CP 1542SP-1 IRC · Siemens

95%

Affected range stops below 2.3, so it looks safe — our inference, not a vendor statement

Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement

SIMATIC CP 1543SP-1 · Siemens

95%

Affected range stops below 2.3, so it looks safe — our inference, not a vendor statement

Affected range stops below V2.3, 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

https://cert-portal.siemens.com/productcert/pdf/ssa-566905.pdf

References (3)

Source: [email protected]

https://cert-portal.siemens.com/productcert/html/ssa-139628.html

Source: [email protected]

https://cert-portal.siemens.com/productcert/html/ssa-566905.html

Vendor Advisory

Source: [email protected]

https://cert-portal.siemens.com/productcert/pdf/ssa-566905.pdf

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

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

CVSS

7.5HIGHsiemens

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-833NVD-CWE-noinfo

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