CVE-2021-35943 is an Incorrect Access Control vulnerability affecting Couchbase Server versions 6.5.x and 6.6.x through 6.6.2, where externally managed users can authenticate with an empty password, violating RFC4513. This critical vulnerability, with a CVSS score of 9.8, allows unauthenticated attackers to achieve full compromise (confidentiality, integrity, and availability) over the network with low attack complexity. While the vulnerability is severe, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.5.0, <= 6.5.2CPE matchmatch criteria | cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:* | ||
>= 6.6.0, < 6.6.3CPE matchmatch criteria | cpe:2.3:a:couchbase:couchbase_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.