CVE-2009-0942 json
Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a reg…
published 2009-05-13 17 y ago modified 2026-06-16 4 mo ago also EUVD-2009-0939
- cvss
- 6.8
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.2%
- EPSS 4.2% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known
Summary
Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.
Patch / fix
Exploit prediction
4.19% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
lists.apple.com
/archives/security-announce/2009/May/msg00002.html
vendor-advisory, patch
-
support.apple.com
/kb/HT3549
patch, vendor-advisory
-
secunia.com
/advisories/35074
third-party-advisory
-
securityfocus.com
/bid/34926
vdb-entry
-
us-cert.gov
/cas/techalerts/TA09-133A.html
third-party-advisory, us-government-resource
-
vupen.com
/english/advisories/2009/1297
vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/50485
vdb-entry
-
securitytracker.com
/id?1022216
vdb-entry
Sources
- CVE List CVE-2009-0942
- NVD CVE-2009-0942
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.