9.8
CRITICAL
CVE-2025-0665
libcurl Eventfd File Descriptor Double Close
Description

libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve.

INFO

Published Date :

Feb. 5, 2025, 10:15 a.m.

Last Modified :

Feb. 5, 2025, 8:15 p.m.

Source :

2499f714-1537-4658-8207-48ae4bb9eae9

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2025-0665 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Haxx curl
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-0665.

URL Resource
https://curl.se/docs/CVE-2025-0665.html
https://curl.se/docs/CVE-2025-0665.json
https://hackerone.com/reports/2954286
http://www.openwall.com/lists/oss-security/2025/02/05/2
http://www.openwall.com/lists/oss-security/2025/02/05/5

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-0665 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2025-0665 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 05, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-1341
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Feb. 05, 2025

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2025/02/05/2
  • New CVE Received by 2499f714-1537-4658-8207-48ae4bb9eae9

    Feb. 05, 2025

    Action Type Old Value New Value
    Added Description libcurl would wrongly close the same eventfd file descriptor twice when taking down a connection channel after having completed a threaded name resolve.
    Added Reference https://curl.se/docs/CVE-2025-0665.html
    Added Reference https://curl.se/docs/CVE-2025-0665.json
    Added Reference https://hackerone.com/reports/2954286
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-0665 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-0665 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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