CVE-2009-1725

WebKit in Apple Safari before 4.0.2, as used on iPhone OS before 3.1, iPhone OS before 3.1.1 for iPod touch, and other platforms; KHTML in kdelibs in KDE; QtWebKit (aka Qt toolkit); and possibly other products do not properly handle numeric character references, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted HTML document.

Published: 2009-07-09 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1725 is rated High Risk (66.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 12.20%, 93th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-1725

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 15.09% 12.20% -2.89%
2 2025-03-29 12.20% 15.09% +2.89%
3 2025-03-17 — 12.20% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1725

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2009-1725

OS Trackers for CVE-2009-1725

vendor priority summary link
redhat high — https://access.redhat.com/security/cve/CVE-2009-1725
ubuntu medium CVE-2009-1725 medium priority: Ubuntu including 4 source packages (kde4libs, kdelibs, qt4-x11, webkit), 36 status rows across 9 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, upstream): ignored 17, not-affected 9, needs-triage 4, released 4, DNE 2. https://ubuntu.com/security/CVE-2009-1725

Vendor comments (NVD) for CVE-2009-1725

  • Red Hat (2009-08-07T00:00:00)

    Not vulnerable. This issue did not affect the versions of the kdelibs packages, as shipped with Red Hat Enterprise Linux 3, 4, or 5.

Affected software / configurations for CVE-2009-1725

Vendor Product Version Raw CPE
apple safari <= 4.0.1 cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
apple safari 2.0 cpe:2.3:a:apple:safari:2.0:*:*:*:*:*:*:*
apple safari 2.0.0 cpe:2.3:a:apple:safari:2.0.0:*:*:*:*:*:*:*
apple safari 2.0.1 cpe:2.3:a:apple:safari:2.0.1:*:*:*:*:*:*:*
apple safari 2.0.2 cpe:2.3:a:apple:safari:2.0.2:*:*:*:*:*:*:*
apple safari 2.0.3 cpe:2.3:a:apple:safari:2.0.3:*:*:*:*:*:*:*
apple safari 2.0.3 cpe:2.3:a:apple:safari:2.0.3:417.8:*:*:*:*:*:*
apple safari 2.0.3 cpe:2.3:a:apple:safari:2.0.3:417.9:*:*:*:*:*:*
apple safari 2.0.3 cpe:2.3:a:apple:safari:2.0.3:417.9.2:*:*:*:*:*:*
apple safari 2.0.3 cpe:2.3:a:apple:safari:2.0.3:417.9.3:*:*:*:*:*:*
apple safari 2.0.4 cpe:2.3:a:apple:safari:2.0.4:*:*:*:*:*:*:*
apple safari 3.0 cpe:2.3:a:apple:safari:3.0:*:*:*:*:*:*:*
apple safari 3.0.0 cpe:2.3:a:apple:safari:3.0.0:*:*:*:*:*:*:*
apple safari 3.0.0b cpe:2.3:a:apple:safari:3.0.0b:*:*:*:*:*:*:*
apple safari 3.0.1 cpe:2.3:a:apple:safari:3.0.1:*:*:*:*:*:*:*
apple safari 3.0.1 cpe:2.3:a:apple:safari:3.0.1:beta:*:*:*:*:*:*
apple safari 3.0.1b cpe:2.3:a:apple:safari:3.0.1b:*:*:*:*:*:*:*
apple safari 3.0.2 cpe:2.3:a:apple:safari:3.0.2:*:*:*:*:*:*:*
apple safari 3.0.2b cpe:2.3:a:apple:safari:3.0.2b:*:*:*:*:*:*:*
apple safari 3.0.3 cpe:2.3:a:apple:safari:3.0.3:*:*:*:*:*:*:*
apple safari 3.0.3b cpe:2.3:a:apple:safari:3.0.3b:*:*:*:*:*:*:*
apple safari 3.0.4 cpe:2.3:a:apple:safari:3.0.4:*:*:*:*:*:*:*
apple safari 3.0.4b cpe:2.3:a:apple:safari:3.0.4b:*:*:*:*:*:*:*
apple safari 3.1.0 cpe:2.3:a:apple:safari:3.1.0:*:*:*:*:*:*:*
apple safari 3.1.0b cpe:2.3:a:apple:safari:3.1.0b:*:*:*:*:*:*:*
apple safari 3.1.1 cpe:2.3:a:apple:safari:3.1.1:*:*:*:*:*:*:*
apple safari 3.1.2 cpe:2.3:a:apple:safari:3.1.2:*:*:*:*:*:*:*
apple safari 3.2.0 cpe:2.3:a:apple:safari:3.2.0:*:*:*:*:*:*:*
apple safari 3.2.1 cpe:2.3:a:apple:safari:3.2.1:*:*:*:*:*:*:*
apple safari 3.2.2 cpe:2.3:a:apple:safari:3.2.2:*:*:*:*:*:*:*
apple safari 4.0 cpe:2.3:a:apple:safari:4.0:*:*:*:*:*:*:*
apple safari 4.0.0b cpe:2.3:a:apple:safari:4.0.0b:*:*:*:*:*:*:*
apple iphone_os <= 3.0.1 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone_os 1.0.0 cpe:2.3:o:apple:iphone_os:1.0.0:*:*:*:*:*:*:*
apple iphone_os 1.0.1 cpe:2.3:o:apple:iphone_os:1.0.1:*:*:*:*:*:*:*
apple iphone_os 1.0.2 cpe:2.3:o:apple:iphone_os:1.0.2:*:*:*:*:*:*:*
apple iphone_os 1.1.0 cpe:2.3:o:apple:iphone_os:1.1.0:*:*:*:*:*:*:*
apple iphone_os 1.1.1 cpe:2.3:o:apple:iphone_os:1.1.1:*:*:*:*:*:*:*
apple iphone_os 1.1.2 cpe:2.3:o:apple:iphone_os:1.1.2:*:*:*:*:*:*:*
apple iphone_os 1.1.3 cpe:2.3:o:apple:iphone_os:1.1.3:*:*:*:*:*:*:*
apple iphone_os 1.1.4 cpe:2.3:o:apple:iphone_os:1.1.4:*:*:*:*:*:*:*
apple iphone_os 1.1.5 cpe:2.3:o:apple:iphone_os:1.1.5:*:*:*:*:*:*:*
apple iphone_os 2.0 cpe:2.3:o:apple:iphone_os:2.0:*:*:*:*:*:*:*
apple iphone_os 2.0.0 cpe:2.3:o:apple:iphone_os:2.0.0:*:*:*:*:*:*:*
apple iphone_os 2.0.1 cpe:2.3:o:apple:iphone_os:2.0.1:*:*:*:*:*:*:*
apple iphone_os 2.0.2 cpe:2.3:o:apple:iphone_os:2.0.2:*:*:*:*:*:*:*
apple iphone_os 2.1 cpe:2.3:o:apple:iphone_os:2.1:*:*:*:*:*:*:*
apple iphone_os 2.1.1 cpe:2.3:o:apple:iphone_os:2.1.1:*:*:*:*:*:*:*
apple iphone_os 2.2 cpe:2.3:o:apple:iphone_os:2.2:*:*:*:*:*:*:*
apple iphone_os 2.2.1 cpe:2.3:o:apple:iphone_os:2.2.1:*:*:*:*:*:*:*
apple iphone_os 3.0 cpe:2.3:o:apple:iphone_os:3.0:*:*:*:*:*:*:*
apple iphone_os — cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone_os <= 3.1 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
apple iphone_os 3.0.1 cpe:2.3:o:apple:iphone_os:3.0.1:*:*:*:*:*:*:*
apple ipod_touch — cpe:2.3:h:apple:ipod_touch:*:*:*:*:*:*:*:*

References for CVE-2009-1725

URL Tags
http://lists.apple.com/archives/security-announce/2009/Jul/msg00000.html Patch Vendor Advisory
http://lists.apple.com/archives/security-announce/2009/Sep/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html
http://osvdb.org/55739
http://secunia.com/advisories/35758
http://secunia.com/advisories/36057
http://secunia.com/advisories/36062
http://secunia.com/advisories/36347
http://secunia.com/advisories/36677
http://secunia.com/advisories/36790
http://secunia.com/advisories/37746
http://secunia.com/advisories/43068
http://support.apple.com/kb/HT3666 Patch Vendor Advisory
http://support.apple.com/kb/HT3860
http://websvn.kde.org/?view=rev&revision=1002162
http://websvn.kde.org/?view=rev&revision=1002163
http://websvn.kde.org/?view=rev&revision=1002164
http://www.debian.org/security/2009/dsa-1950
http://www.mandriva.com/security/advisories?name=MDVSA-2009:330
http://www.securityfocus.com/bid/35607 Patch
http://www.securitytracker.com/id?1022526
http://www.ubuntu.com/usn/USN-836-1
http://www.ubuntu.com/usn/USN-857-1
http://www.vupen.com/english/advisories/2009/1827
http://www.vupen.com/english/advisories/2011/0212
https://bugzilla.redhat.com/show_bug.cgi?id=513813
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5777
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00931.html
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg00933.html
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg01177.html
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg01196.html
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg01199.html
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg01200.html
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