CVE-2011-3443
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote...
CVE-2011-3443 is a high vulnerability (CVSS 7.5) in Apple Safari, published March 2, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.02%, the 80th percentile. No source names a fixed version.
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors related to improper list management for Cascading Style Sheets (CSS) @font-face rules.
Exploit likelihood
What each source reports
NVD Score used
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors related to improper list management for Cascading Style Sheets (CSS) @font-face rules.
- Record
CVE-2011-3443- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-399
- Updated
- 2026-11-02
CVE List No score
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors related to improper list management for Cascading Style Sheets (CSS) @font-face rules.
- Record
CVE-2011-3443- Updated
- 2026-11-02
EUVDEUVD-2011-3406 No score
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors related to improper list management for Cascading Style Sheets (CSS) @font-face rules.
- Record
EUVD-2011-3406- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-76h2-gg8c-qx4m No score
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote...
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors related to improper list management for Cascading Style Sheets (CSS) @font-face rules.
- Record
GHSA-76h2-gg8c-qx4m- Updated
- 2026-11-02
OSVUBUNTU-CVE-2011-3443 No score
Use-after-free vulnerability in WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption and application crash) via vectors related to improper list management for Cascading Style Sheets (CSS) @font-face rules.
- Record
UBUNTU-CVE-2011-3443- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
qtwebkit-sourceUbuntu:16.04:LTS |
All versions, plus listed versions 2.3.2-0ubuntu102.3.2-0ubuntu11 |
None known |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
support.apple.com/kb/HT4808
verisigninc.com/products-and-services/network-intelligence-availability/idefense/public-vulnerability-reports/articles/index.xhtml?id=962
nvd.nist.gov/vuln/detail/CVE-2011-3443
github.com/advisories/GHSA-76h2-gg8c-qx4m
ubuntu.com/security/CVE-2011-3443
cve.org/CVERecord?id=CVE-2011-3443