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CVE-2011-0199

19
FAUCET Score

CVE-2011-0199 describes a vulnerability in Apple Mac OS X versions prior to 10.6.8 where the Certificate Trust Policy component fails to perform Certificate Revocation List (CRL) checks for Extended Validation (EV) certificates lacking Online Certificate Status Protocol (OCSP) URLs. This flaw could enable man-in-the-middle attackers to spoof an SSL server using a revoked certificate. The vulnerability has a CVSS score of 5.9 (Medium), indicating a network-based attack with high impact to integrity, but requiring high attack complexity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 10.6.0, < 10.6.8CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
>= 10.6.0, < 10.6.8CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 10th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

applepatch availablevia nvd_reference
View patch

References

lists.apple.com / archives/security-announce/2011//Jun/msg00000.html
Mailing ListPatchVendor Advisory
support.apple.com / kb/HT4723
PatchVendor Advisory
securityfocus.com / bid/48447
Broken LinkThird Party AdvisoryVDB Entry