What’s Vulnerable › Vulnerabilities

CVE-2023-38380

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-12 · updated 2026-06-17
• Weakness: CWE-401

Description

A vulnerability has been identified in SIMATIC CP 1242-7 V2 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-1 (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-1 DNP3 (incl. SIPLUS variants) (All versions), SIMATIC CP 1243-1 IEC (incl. SIPLUS variants) (All versions < V3.4.29), SIMATIC CP 1243-7 LTE (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 1543-1 (6GK7543-1AX00-0XE0) (All versions < V3.0.37), SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0) (All versions < V2.3), SINAMICS S210 (6SL5...) (All versions >= V6.1 < V6.1 HF2), 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 1543-1 (6AG1543-1AX00-2XE0) (All versions < V3.0.37). The webserver implementation of the affected products does not correctly release allocated memory after it has been used. An attacker with network access could use this vulnerability to cause a denial-of-service condition in the webserver of the affected product.

Affected products

• Siemens 6Ag1543-1Ax00-2Xe0 Firmware: all versions
• Siemens 6Gk7243-8Rx30-0Xe0 Firmware: all versions
• Siemens 6Gk7543-1Ax00-0Xe0 Firmware: all versions
• Siemens Simatic Cp 1242-7 V2 Firmware: all versions
• Siemens Simatic Cp 1243-1 Dnp3 Firmware: all versions
• Siemens Simatic Cp 1243-1 Firmware: all versions
• Siemens Simatic Cp 1243-1 Iec Firmware: all versions
• Siemens Simatic Cp 1243-7 Lte Firmware: all versions
• Siemens Sinamics S210 Firmware: 5.1, 5.1-sp1, 5.1-sp1_hotfix8, 5.2, 5.2-hotfix2, 5.2-hotfix5 (+9)

References

• https://cert-portal.siemens.com/productcert/html/ssa-139628.html
• https://cert-portal.siemens.com/productcert/html/ssa-625862.html
• https://cert-portal.siemens.com/productcert/html/ssa-693975.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-693975.pdf
• https://cert-portal.siemens.com/productcert/html/ssa-139628.html
• https://cert-portal.siemens.com/productcert/html/ssa-625862.html
• https://cert-portal.siemens.com/productcert/html/ssa-693975.html
• https://cert-portal.siemens.com/productcert/pdf/ssa-693975.pdf

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