CVE-2021-31890 is a critical vulnerability affecting multiple Siemens products, including Capital Embedded AR Classic and SIMOTICS CONNECT 400. It stems from an unchecked TCP payload length, which can lead to information disclosure and denial-of-service conditions. With a CVSS score of 9.1, this network-exploitable flaw requires no user interaction or privileges. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:siemens:capital_vstar:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* | ||
< 2017.02.4CPE matchmatch criteria | cpe:2.3:a:siemens:nucleus_readystart_v3:*:*:*:*:*:*:*:* | ||
< 4.1.1CPE matchmatch criteria | cpe:2.3:a:siemens:nucleus_readystart_v4:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:siemens:nucleus_source_code:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.