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CVE-2021-44694

Affected devices don't process correctly certain special crafted packets sent to port 102/tcp, which could allow an attacker to cause a denial of service in the device.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction . The vulnerability impacts limited integrity, and availability (service disruption) for affected systems. Impacting 184 products from siemens, from siemens, from siemens and 181 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2022, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2022-12-13T16:15:14.840

Last Modified

2024-11-21T06:31:23.633

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

Weaknesses

Type: Secondary
CWE-1287
Type: Secondary
CWE-20

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	siemens	simatic_s7-plcsim_advanced_firmware	< 5.0	Yes
Hardware	siemens	simatic_s7-plcsim_advanced	-	No
Operating System	siemens	simatic_s7-1200_cpu_1211c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1211c	-	No
Operating System	siemens	simatic_s7-1200_cpu_1212c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1212c	-	No
Operating System	siemens	simatic_s7-1200_cpu_1212fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1212fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_1214_fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1214_fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_1214c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1214c	-	No
Operating System	siemens	simatic_s7-1200_cpu_1214fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1214fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_1215_fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1215_fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_1215c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1215c	-	No
Operating System	siemens	simatic_s7-1200_cpu_1215fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1215fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_1217c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_1217c	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1211c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1211c	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1212c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1212c	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1212fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1212fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1214c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1214c	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1214fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1214fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1215c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1215c	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1215fc_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1215fc	-	No
Operating System	siemens	simatic_s7-1200_cpu_12_1217c_firmware	< 4.6.0	Yes
Hardware	siemens	simatic_s7-1200_cpu_12_1217c	-	No
Operating System	siemens	siplus_s7-1200_cp_1243-1_rail_firmware	< 4.6.0	Yes
Hardware	siemens	siplus_s7-1200_cp_1243-1_rail	-	No
Operating System	siemens	siplus_s7-1200_cp_1243-1_firmware	< 4.6.0	Yes
Hardware	siemens	siplus_s7-1200_cp_1243-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1507s_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1507s	-	No
Operating System	siemens	simatic_s7-1500_cpu_1507s_f_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1507s_f	-	No
Operating System	siemens	simatic_s7-1500_cpu_1508s_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1508s	-	No
Operating System	siemens	simatic_s7-1500_cpu_1508s_f_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1508s_f	-	No
Operating System	siemens	simatic_s7-1500_cpu_1510sp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1510sp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1510sp-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1510sp-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511-1_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511-1_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511c_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511c	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511c-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511c-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511f-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511f-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511f-1_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511f-1_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511t-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511t-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1511tf-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1511tf-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1512c_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1512c	-	No
Operating System	siemens	simatic_s7-1500_cpu_1512c-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1512c-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1512sp-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1512sp-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1512spf-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1512spf-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1513-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1513-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1513-1_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1513-1_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1513f-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1513f-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1513f-1_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1513f-1_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1513r-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1513r-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1515-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1515-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_1515-2_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1515-2_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_151511c-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_151511c-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_151511f-1_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_151511f-1	-	No
Operating System	siemens	simatic_s7-1500_cpu_1515f-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1515f-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_1515f-2_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1515f-2_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1515r-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1515r-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_1515t-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1515t-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_1515tf-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1515tf-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516-3_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516-3	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516-3_dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516-3_dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516-3_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516-3_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516-3_pn\/dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516-3_pn\/dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516f-3_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516f-3	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516f-3_pn\/dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516f-3_pn\/dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516pro-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516pro-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516pro_f_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516pro_f	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516t-3_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516t-3	-	No
Operating System	siemens	simatic_s7-1500_cpu_1516tf-3_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1516tf-3	-	No
Operating System	siemens	simatic_s7-1500_cpu_1517-3_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1517-3	-	No
Operating System	siemens	simatic_s7-1500_cpu_1517-3_dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1517-3_dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1517-3_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1517-3_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1517-3_pn\/dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1517-3_pn\/dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1517f-3_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1517f-3	-	No
Operating System	siemens	simatic_s7-1500_cpu_1517f-3_pn\/dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1517f-3_pn\/dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1517tf-3_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1517tf-3	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518-4_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518-4	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518-4_dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518-4_dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518-4_pn_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518-4_pn	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518-4_pn\/dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518-4_pn\/dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518-4_pn\/dp_mfp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518f-4_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518f-4	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518f-4_pn\/dp_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518f-4_pn\/dp	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518hf-4_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518hf-4	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518t-4_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518t-4	-	No
Operating System	siemens	simatic_s7-1500_cpu_1518tf-4_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_1518tf-4	-	No
Operating System	siemens	simatic_s7-1500_cpu_15pro-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_15pro-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_15prof-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_15prof-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_cpu_1513pro-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_cpu_1513pro-2	-	No
Operating System	siemens	simatic_s7-1500_cpu_cpu_1513prof-2_firmware	< 3.0.1	Yes
Hardware	siemens	simatic_s7-1500_cpu_cpu_1513prof-2	-	No
Operating System	siemens	siplus_et_200sp_cp_1542sp-1_irc_tx_rail_firmware	< 3.0.1	Yes
Hardware	siemens	siplus_et_200sp_cp_1542sp-1_irc_tx_rail	-	No
Operating System	siemens	siplus_et_200sp_cp_1543sp-1_isec_firmware	< 3.0.1	Yes
Hardware	siemens	siplus_et_200sp_cp_1543sp-1_isec	-	No
Operating System	siemens	siplus_et_200sp_cp_1543sp-1_isec_tx_rail_firmware	< 3.0.1	Yes
Hardware	siemens	siplus_et_200sp_cp_1543sp-1_isec_tx_rail	-	No
Operating System	siemens	simatic_et_200_sp_open_controller_cpu_1515sp_pc_firmware	-	Yes
Hardware	siemens	simatic_et_200_sp_open_controller_cpu_1515sp_pc	-	No
Operating System	siemens	simatic_s7-1500_software_controller_firmware	-	Yes
Hardware	siemens	simatic_s7-1500_software_controller	-	No
Operating System	siemens	siplus_tim_1531_irc_firmware	-	Yes
Hardware	siemens	siplus_tim_1531_irc	-	No
Operating System	siemens	tim_1531_irc_firmware	-	Yes
Hardware	siemens	tim_1531_irc	-	No

References

https://cert-portal.siemens.com/productcert/pdf/ssa-382653.pdf Patch, Vendor Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-382653.pdf Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For siemens's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.