CVE-2021-42020 is a vulnerability affecting numerous Siemens RUGGEDCOM products, specifically within their TFTP functionality. The flaw stems from a failure to properly check for null terminations in filenames, which could lead to data corruption or application hard-faults. This vulnerability carries a CVSS score of 7.5 (High), indicating a significant risk. It can be exploited remotely with low attack complexity, requiring no user interaction or privileges, and its primary impact is high availability loss. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are also minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:siemens:ruggedcom_ros:*:*:*:*:*:*:*:* | ||
< 5.6.0CPE matchmatch criteria | cpe:2.3:o:siemens:ruggedcom_ros:*:*:*:*:*:*:*:* |
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, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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.