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CVE-2023-50763

MEDIUM
4.9
CVSS Score
Published: June 11, 2024 at 11:15 AM UTC
Updated: June 17, 2026 at 06:39 AM UTC
8 products affected across 1 vendorTIM 1531 IRCSiplus Et 200SP Cp 1543SP 1 Isec Tx Rail FirmwareSiplus Tim 1531 Irc Firmware

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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

A vulnerability has been identified in 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), 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 TIM 1531 IRC (6AG1543-1MX00-7XE0) (All versions < V2.4.8), TIM 1531 IRC (6GK7543-1MX00-0XE0) (All versions < V2.4.8). The web server of affected products, if configured to allow the import of PKCS12 containers, could end up in an infinite loop when processing incomplete certificate chains. This could allow an authenticated remote attacker to create a denial of service condition by importing specially crafted PKCS12 containers.

Affected

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

SIMATIC Cp 1542SP 1 Firmware· Siemens
60%
v < V2.3
Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement
SIMATIC CP 1542SP-1 IRC· Siemens
60%
v < V2.3
Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement
SIMATIC CP 1543SP-1· Siemens
60%
v < V2.3
Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement
Siplus Et 200SP Cp 1542SP 1 Irc Tx Rail Firmware· Siemens
60%
v < V2.3
Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement
Siplus Et 200SP Cp 1543SP 1 Isec Firmware· Siemens
60%
v < V2.3
Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement
Siplus Et 200SP Cp 1543SP 1 Isec Tx Rail Firmware· Siemens
60%
v < V2.3
Affected range stops below V2.3, so it looks safe — our inference, not a vendor statement
Siplus Tim 1531 Irc Firmware· Siemens
60%
v < V2.4.8
Affected range stops below V2.4.8, so it looks safe — our inference, not a vendor statement
TIM 1531 IRC· Siemens
60%
v < V2.4.8
Affected range stops below V2.4.8, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

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-337522.html
Source: [email protected]
https://cert-portal.siemens.com/productcert/html/ssa-625862.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

4.9MEDIUMsiemens
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-835

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