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CVE-2013-0966

19
FAUCET Score

CVE-2013-0966 describes a vulnerability in the Apple mod_hfs_apple module for Apache HTTP Server on Mac OS X before version 10.8.3. This flaw allows remote attackers to bypass directory authentication by crafting URIs with ignorable Unicode characters. With a CVSS score of 6.4, this vulnerability is of medium severity, requiring no authentication and low attack complexity to achieve partial confidentiality and integrity impact. There is no evidence of active exploitation, public exploit code, or inclusion in CISA's KEV catalog, though it garnered some community discussion and media coverage at the time of its disclosure.

Impacted Technologies

VendorProductVersion(s)CPE
10.6.8CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.6.8:*:*:*:*:*:*:*
10.6.8CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:10.6.8:*:*:*:*:*:*:*
10.7.0CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.0:*:*:*:*:*:*:*
10.7.1CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.1:*:*:*:*:*:*:*
10.7.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.4MEDIUM

AV:N/AC:L/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.70%
Probability of exploitation in next 30 days
EPSS Percentile
74.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0170 is in the 60th percentile among its peer group of 23,723 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

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

Remediation

Remediation records are not available for this CVE.

References

lists.apple.com / archives/security-announce/2013/Mar/msg00002.html
Vendor Advisory