CVE-2021-31892 is a critical vulnerability affecting numerous Siemens SINUMERIK and related products, stemming from incorrect TLS certificate validation due to an error in a third-party dependency. This flaw allows for a Man-in-the-Middle (MITM) attack, enabling an unauthenticated attacker to intercept and potentially manipulate communications between affected systems. With a CVSS score of 7.4 (High), it presents a significant risk due to its network-based attack vector and high impact on confidentiality and integrity, despite requiring high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:sinumerik_analyse_mycondition_firmware:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:siemens:sinumerik_analyze_myperformance_firmware:-:*:*:*:*:*:*:* | ||
>= 2.00.12, < 2.00.18CPE matchmatch criteria | cpe:2.3:o:siemens:sinumerik_integrate_client_firmware:*:*:*:*:*:*:*:* | ||
>= 3.00.12, < 3.00.18CPE matchmatch criteria | cpe:2.3:o:siemens:sinumerik_integrate_client_firmware:*:*:*:*:*:*:*:* | ||
>= 4.00.15, < 4.00.18CPE matchmatch criteria | cpe:2.3:o:siemens:sinumerik_integrate_client_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.