CVE-2021-43669 is a high-severity vulnerability affecting HyperLedger Fabric versions 1.4.0, 2.0.0, 2.0.1, and 2.3.0. An unauthenticated attacker can exploit this flaw by sending a malformed message header, leading to a denial-of-service condition that can disrupt multiple orderers. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network with low attack complexity, resulting in high availability impact. While the bug has been acknowledged and fixed by developers, there is currently no public exploit code, active exploitation, or significant community discussion surrounding it.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.4.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:fabric:1.4.0:*:*:*:*:*:*:* | ||
2.0.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:fabric:2.0.0:*:*:*:*:*:*:* | ||
2.0.1CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:fabric:2.0.1:*:*:*:*:*:*:* | ||
2.3.0CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:fabric:2.3.0:*:*:*:*:*:*:* |
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.