What’s Vulnerable › Vulnerabilities

CVE-2020-15796

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-14 · updated 2026-06-17
• Weakness: CWE-248

Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller (incl. SIPLUS variants) (V20.8), SIMATIC S7-1500 Software Controller (V20.8). The web server of the affected products contains a vulnerability that could allow a remote attacker to trigger a denial-of-service condition by sending a specially crafted HTTP request.

Affected products

• Siemens Simatic Et 200Sp Open Controller Firmware: through 20.8
• Siemens Simatic S7-1500 Software Controller Firmware: through 20.8

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdf
• https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdf

Get alerted when CVE-2020-15796 or the next vulnerability affects your stack