CVE-2021-27663 is a critical vulnerability affecting Johnson Controls CEM Systems AC2000 versions 10.1 through 10.5, allowing remote attackers to bypass authorization and gain unauthorized system access. With a CVSS score of 9.8, this flaw presents a severe risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability compromise. While no public exploits (Metasploit, Nuclei, ExploitDB) are currently known and it is not on the KEV catalog, there is also minimal community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 10.1, <= 10.5CPE matchmatch criteria | cpe:2.3:o:johnsoncontrols:ac2000_firmware:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
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.