CVE-2021-20653 describes an access restriction bypass vulnerability in multiple versions of Calsos CSDJ devices (CSDJ-B, CSDJ-H, CSDJ-D, and CSDJ-A). This flaw allows remote attackers to obtain unauthorized historical data without requiring any privileges. With a CVSS score of 5.3 (Medium), this vulnerability is easily exploitable over the network with low attack complexity, though it only impacts confidentiality. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 01.08.00CPE matchmatch criteria | cpe:2.3:o:nec:csdj-b_firmware:*:*:*:*:*:*:*:* | ||
<= 01.08.00CPE matchmatch criteria | cpe:2.3:o:nec:csdj-h_firmware:*:*:*:*:*:*:*:* | ||
<= 01.08.00CPE matchmatch criteria | cpe:2.3:o:nec:csdj-d_firmware:*:*:*:*:*:*:*:* | ||
<= 03.08.00CPE matchmatch criteria | cpe:2.3:o:nec:csdj-a_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.