CVE-2025-4947 – libcurl QUIC Certificate Verification Bypass

The following table lists the changes that have been made to the
CVE-2025-4947 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 af854a3a-2127-422b-91ae-364da2661108

    May. 28, 2025

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2025/05/28/4
  • New CVE Received
    by 2499f714-1537-4658-8207-48ae4bb9eae9

    May. 28, 2025

    Action Type Old Value New Value
    Added Description libcurl accidentally skips the certificate verification for QUIC connections when connecting to a host specified as an IP address in the URL. Therefore, it does not detect impostors or man-in-the-middle attacks.
    Added Reference https://curl.se/docs/CVE-2025-4947.html
    Added Reference https://curl.se/docs/CVE-2025-4947.json
    Added Reference https://hackerone.com/reports/3150884
Share the Post:

Related Posts