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CVE-2009-1727

21
FAUCET Score

CVE-2009-1727 describes an incomplete blacklist vulnerability in CoreTypes within Apple Mac OS X 10.5 prior to 10.5.8. This flaw allows user-assisted remote attackers to execute arbitrary JavaScript by tricking a user into downloading a malicious file with a Content-Type not explicitly blacklisted by Safari. The vulnerability has a CVSS score of 6.8, indicating a medium severity with network access, medium attack complexity, and potential for partial confidentiality, integrity, and availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
10.5.6CPE matchmatch criteria
cpe:2.3:a:apple:mac_os_x:10.5.6:*:*:*:*:*:*:*
10.5CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.5:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

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
2.67%
Probability of exploitation in next 30 days
EPSS Percentile
84.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0267 is in the 76th percentile among its peer group of 19,958 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/2009/Aug/msg00001.html
PatchVendor Advisory
osvdb.org / 56844
secunia.com / advisories/36096
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/52420
support.apple.com / kb/HT3757
PatchVendor Advisory
securityfocus.com / bid/35954
Patch
us-cert.gov / cas/techalerts/TA09-218A.html
US Government Resource
vupen.com / english/advisories/2009/2172
PatchVendor Advisory