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CVE-2009-1725

33
FAUCET Score

CVE-2009-1725 describes a critical vulnerability in WebKit and related rendering engines, including those used in Apple Safari before 4.0.2, iPhone OS before 3.1, and KDE's KHTML. This flaw allows remote attackers to execute arbitrary code or cause a denial of service through memory corruption by crafting a malicious HTML document that improperly handles numeric character references. With a CVSS score of 9.3, this vulnerability is highly severe, indicating a network-based attack with medium complexity that can lead to complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.0.1CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:2.0:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:apple:safari:2.0.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:apple:safari:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:apple:safari:2.0.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.19%
Probability of exploitation in next 30 days
EPSS Percentile
92.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0619 is in the 67th percentile among its peer group of 8,914 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

applepatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2009-1725Important

qt-4.5.2: improper handling of numeric character references (ACE, DoS)

Jul 25, 2009

References

lists.apple.com / archives/security-announce/2009/Jul/msg00000.html
PatchVendor Advisory
lists.apple.com / archives/security-announce/2009/Sep/msg00001.html
lists.opensuse.org / opensuse-security-announce/2011-01/msg00006.html
osvdb.org / 55739
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/35758
secunia.com / advisories/36057
secunia.com / advisories/36062
secunia.com / advisories/36347
secunia.com / advisories/36677
secunia.com / advisories/36790
secunia.com / advisories/37746
secunia.com / advisories/43068
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5777
support.apple.com / kb/HT3666
PatchVendor Advisory
support.apple.com / kb/HT3860
redhat.com / archives/fedora-package-announce/2009-August/msg00931.html
redhat.com / archives/fedora-package-announce/2009-August/msg00933.html
redhat.com / archives/fedora-package-announce/2009-July/msg01177.html
redhat.com / archives/fedora-package-announce/2009-July/msg01196.html
redhat.com / archives/fedora-package-announce/2009-July/msg01199.html
redhat.com / archives/fedora-package-announce/2009-July/msg01200.html
websvn.kde.org
websvn.kde.org
websvn.kde.org
debian.org / security/2009/dsa-1950
mandriva.com / security/advisories
securityfocus.com / bid/35607
Patch
securitytracker.com / id
ubuntu.com / usn/USN-836-1
ubuntu.com / usn/USN-857-1
vupen.com / english/advisories/2009/1827
vupen.com / english/advisories/2011/0212