PoC Index

CVE-2025-5025

MEDIUM 4.8EPSS 0.3%

libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing.

CVSS v3.1
4.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS
0.29% chance of exploitation in the next 30 days, 21th percentile
Published
2025-05-28
Updated
2025-05-30

Proof-of-concept exploits (1)

References

Related