What is CVE-2016-9952?

CVE-2016-9952 is a high-severity vulnerability in Haxx Curl, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2018-03-12.

How severe is CVE-2016-9952?

High severity. CVSS v3 base score is 8.1 out of 10.

Is CVE-2016-9952 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Haxx Curl

CVE-2016-9952

The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, makes it easier for remote attackers to conduct man-in-the-middle attacks via a crafted wild…

Vulnerability class: Improper Certificate Validation

EPSS: 0.013 (66.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)
cve@mitre.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2016-9952?: CVE-2016-9952 is a high-severity vulnerability in Haxx Curl, classified under Improper Certificate Validation. CVSS score: 8.1/10. Published 2018-03-12.
How severe is CVE-2016-9952?: High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2016-9952 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.