VULNERABILITY INTELLIGENCE
CVE-2009-0653
CVSS score7.5 HIGH
EPSS probability1.15%
CISA KEVNot currently listed
Published2009-02-20
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P
Description
OpenSSL, probably 0.9.6, does not verify the Basic Constraints for an intermediate CA-signed certificate, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack, a related issue to CVE-2002-0970.
Weakness classification
- CWE-287: Improper Authentication