Vulnerability in Haxx Curl

CVE-2022-43551

A vulnerability exists in curl <7.87.0 HSTS check that could be bypassed to trick it to keep using HTTP. Using its HSTS support, curl can be instructed to use HTTPS instead of using an insecure clear-text HTTP step even when HTTP is provid…

EPSS: 0.165 (96.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-43551?
CVE-2022-43551 is a high-severity vulnerability in Haxx Curl, classified under Cleartext Transmission of Sensitive Information. CVSS score: 7.5/10. Published 2022-12-23.
How severe is CVE-2022-43551?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-43551 known to be exploited?
8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.