CVE-2025-24294
HIGH EPSS 41.2%
Published Jul 12, 202511mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
Published Jul 12, 2025 11mo ago
Last Modified Jun 17, 2026 1w ago
Description
The attack vector is a potential Denial of Service (DoS). The vulnerability is caused by an insufficient check on the length of a decompressed domain name within a DNS packet. An attacker can craft a malicious DNS packet containing a highly compressed domain name. When the resolv library parses such a packet, the name decompression process consumes a large amount of CPU resources, as the library does not limit the resulting length of the name. This resource consumption can cause the application thread to become unresponsive, resulting in a Denial of Service condition.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
41.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-400 Uncontrolled Resource Consumption Resource Mgmt
References 1
- ruby-lang.org https://www.ruby-lang.org/en/news/2025/07/08/dos-resolv-cve-2025-24294/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.