CVE-2011-0199

Name: CVE-2011-0199
Creator: NVD / NIST
Published: 2011-06-24T20:55:02.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.9/10EPSS 0.75%

Last modified Jun 16, 2026

CVE-2011-0199 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. The Certificate Trust Policy component in Apple Mac OS X before 10.6.8 does not perform CRL checking for Extended Validation (EV) certificates that lack OCSP URLs, which might allow man-in-the-middle attackers to spoof an SSL server via a revoked certificate.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

The Certificate Trust Policy component in Apple Mac OS X before 10.6.8 does not perform CRL checking for Extended Validation (EV) certificates that lack OCSP URLs, which might allow man-in-the-middle attackers to spoof an SSL server via a revoked certificate.

Metrics

CVSS 3.1

5.9/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS Probability

0.75%

50.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apple	Mac Os X	>= 10.6.0, < 10.6.8
Apple	Mac Os X Server	>= 10.6.0, < 10.6.8

References

http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.htmlMailing List, Patch, Vendor Advisory
http://support.apple.com/kb/HT4723Patch, Vendor Advisory
http://www.securityfocus.com/bid/48447Broken Link, Third Party Advisory, VDB Entry
http://lists.apple.com/archives/security-announce/2011//Jun/msg00000.htmlMailing List, Patch, Vendor Advisory
http://support.apple.com/kb/HT4723Patch, Vendor Advisory
http://www.securityfocus.com/bid/48447Broken Link, Third Party Advisory, VDB Entry

Timeline

Published: Jun 24, 2011
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-0199?

How severe is CVE-2011-0199?

CVE-2011-0199 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2011-0199?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-0199?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST