Medium 4.3Published May 13, 2009

CVE-2009-0153International Components for Unicode (ICU) 4.0, 3.6, and other 3.x versions, as used in Apple Mac OS X 10.5 before 10.5.7, iPhone OS 1.0 through 2.2.1, iPhone OS for iPod touch 1.1 through 2.2.1, Fed…

Updated under an hour ago (Nov 2, 2026, 12:20 AM ET)

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International Components for Unicode (ICU) 4.0, 3.6, and other 3.x versions, as used in Apple Mac OS X 10.5 before 10.5.7, iPhone OS 1.0 through 2.2.1, iPhone OS for iPod touch 1.1 through 2.2.1, Fedora 9 and 10, and possibly other operating systems, does not properly handle invalid byte sequences during Unicode conversion, which might allow remote attackers to conduct cross-site scripting (XSS) attacks.

CVSS: 4.3 MEDIUM (v2.0, NVD)AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-79
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

apple mac_os_x apple:mac_os_x	10.5.0; 10.5.1; 10.5.2; 10.5.3; 10.5.4; 10.5.5; 10.5.6	NVD
apple mac_os_x_server apple:mac_os_x_server	10.5.0; 10.5.1; 10.5.2; 10.5.3; 10.5.4; 10.5.5; 10.5.6	NVD

References

References

http://bugs.icu-project.org/trac/ticket/5691
http://lists.apple.com/archives/security-announce/2009/Jun/msg00005.html
http://lists.apple.com/archives/security-announce/2009/May/msg00002.html	patch, vendor-advisory
http://lists.apple.com/archives/security-announce/2009/jun/msg00002.html
http://secunia.com/advisories/35074
http://secunia.com/advisories/35379
http://secunia.com/advisories/35436
http://secunia.com/advisories/35498
http://secunia.com/advisories/35584
http://support.apple.com/kb/HT3549	patch, vendor-advisory
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.