CVE-2021-43999 is a high-severity authentication bypass vulnerability affecting Apache Guacamole versions 1.2.0 and 1.3.0 when SAML support is enabled. The flaw stems from improper validation of SAML identity provider responses, allowing a malicious user to impersonate another Guacamole user. With a CVSS score of 8.8, this vulnerability is easily exploitable over the network with low privileges and no user interaction, leading to high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.2.0CPE matchmatch criteria | cpe:2.3:a:apache:guacamole:1.2.0:-:*:*:*:*:*:* | ||
1.3.0CPE matchmatch criteria | cpe:2.3:a:apache:guacamole:1.3.0:-:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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.