Vulnerabilities of Siemens SINUMERIK 840D sl

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CVE	Summary	Score	Published
CVE-2025-40833	The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests	7.5 High	May 12, 2026
CVE-2025-40820	Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values…	7.5 High	Dec 9, 2025
CVE-2025-40743	A vulnerability has been identified in SINUMERIK 828D PPU.4 (All versions < V4.95 SP5), SINUMERIK 828D PPU.5 (All…	8.3 High	Aug 12, 2025
CVE-2024-23814	The integrated ICMP service of the network stack of affected devices can be forced to exhaust its available memory…	5.3 Medium	Feb 11, 2025
CVE-2020-15783	A vulnerability has been identified in SIMATIC S7-300 CPU family (incl	7.5 High	Nov 12, 2020
CVE-2020-15791	A vulnerability has been identified in SIMATIC S7-300 CPU family (incl	6.5 Medium	Sep 9, 2020
CVE-2019-10923	An attacker with network access to an affected product may cause a denial of service condition by breaking the real-time…	7.5 High	Oct 10, 2019
CVE-2019-10936	Affected devices improperly handle large amounts of specially crafted UDP packets	7.5 High	Oct 10, 2019
CVE-2017-12741	Specially crafted packets sent to port 161/udp could cause a denial of service condition	7.5 High	Dec 26, 2017