Vulnerability in Apple Mac_os_x

CVE-2010-1378

OpenSSL in Apple Mac OS X 10.6.x before 10.6.5 does not properly perform arithmetic, which allows remote attackers to bypass X.509 certificate authentication via an arbitrary certificate issued by a legitimate Certification Authority.

Vulnerability class: Improper Certificate Validation

EPSS: 0.002 (45.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2010-1378?
CVE-2010-1378 is a critical-severity vulnerability in Apple Mac_os_x, classified under Improper Certificate Validation. CVSS score: 9.8/10. Published 2010-11-15.
How severe is CVE-2010-1378?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2010-1378 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.