Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2009-2816

21
FAUCET Score

CVE-2009-2816 describes a Cross-Site Request Forgery (CSRF) vulnerability in the Cross-Origin Resource Sharing (CORS) implementation of WebKit, affecting Apple Safari before 4.0.4 and Google Chrome before 3.0.195.33, as well as other products like Fedora and OpenSUSE. The vulnerability arises because custom HTTP headers are included in OPTIONS preflight requests, simplifying CSRF attacks. With a CVSS score of 6.8, this vulnerability has a network attack vector, medium attack complexity, and potential for partial impact on confidentiality, integrity, and availability. 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
< 4.0.4CPE matchmatch criteria
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
< 3.0.195.33CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 4.0CPE matchmatch criteria
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
11.2CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
11.3CPE matchmatch criteria
cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*

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
1.55%
Probability of exploitation in next 30 days
EPSS Percentile
72.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0155 is in the 47th 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

Vendor Advisories (1)

redhatCVE-2009-2816Moderate

qt: MITM in the WebKit's Cross-Origin Resource Sharing (CORS) implementation

Nov 11, 2009

References

lists.apple.com / archives/security-announce/2009/Nov/msg00001.html
Mailing ListPatchVendor Advisory
lists.apple.com / archives/security-announce/2010/Jun/msg00003.html
Mailing ListVendor Advisory
lists.opensuse.org / opensuse-security-announce/2011-01/msg00006.html
Third Party Advisory
osvdb.org / 59940
Broken Link
osvdb.org / 59967
Broken Link
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/37346
Third Party Advisory
secunia.com / advisories/37358
Third Party Advisory
secunia.com / advisories/37393
Third Party Advisory
secunia.com / advisories/37397
Third Party Advisory
secunia.com / advisories/43068
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/54239
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6516
Third Party Advisory
support.apple.com / kb/HT3949
PatchVendor Advisory
support.apple.com / kb/HT4225
Vendor Advisory
redhat.com / archives/fedora-package-announce/2009-November/msg00545.html
Third Party Advisory
redhat.com / archives/fedora-package-announce/2009-November/msg00549.html
Third Party Advisory
securityfocus.com / bid/36997
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
vupen.com / english/advisories/2009/3217
Vendor Advisory
vupen.com / english/advisories/2009/3233
Vendor Advisory
vupen.com / english/advisories/2011/0212
Vendor Advisory