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CVE-2009-0154

20
FAUCET Score

CVE-2009-0154 describes a heap-based buffer overflow in Apple Type Services (ATS) affecting Apple Mac OS X versions 10.4.11 and 10.5 prior to 10.5.7. This vulnerability allows remote attackers to execute arbitrary code through a specially crafted Compact Font Format (CFF) font. With a CVSS score of 6.8, it is considered a medium-severity vulnerability, requiring medium attack complexity and potentially leading to partial compromise of confidentiality, integrity, and availability. Despite its age and a high FAUCET Risk Score of 91/100, there is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.4.11CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.4.11:*:*:*:*:*:*:*
10.5.0CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.5.0:*:*:*:*:*:*:*
10.5.1CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.5.1:*:*:*:*:*:*:*
10.5.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.5.2:*:*:*:*:*:*:*
10.5.3CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.5.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.53%
Probability of exploitation in next 30 days
EPSS Percentile
92.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0553 is in the 90th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

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/2009/May/msg00002.html
PatchVendor Advisory
secunia.com / advisories/35074
exchange.xforce.ibmcloud.com / vulnerabilities/50478
support.apple.com / kb/HT3549
PatchVendor Advisory
securityfocus.com / archive/1/503597/100/0/threaded
securityfocus.com / bid/34926
securitytracker.com / id
us-cert.gov / cas/techalerts/TA09-133A.html
US Government Resource
vupen.com / english/advisories/2009/1297
zerodayinitiative.com / advisories/ZDI-09-023