CVE-2023-26249 is a resource exhaustion vulnerability affecting Knot Resolver versions prior to 5.6.0. Attackers can leverage this flaw to launch amplification attacks and potentially cause a denial of service by sending a single query that triggers numerous TCP connection attempts if a DNS server fails to respond. With a CVSS score of 7.5 (High), this vulnerability is network-exploitable with low attack complexity, requiring no privileges or user interaction, and primarily impacts availability. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.6.0CPE matchmatch criteria | cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:* |
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.
Remediation records are not available for this CVE.