CVE-2011-0255
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code...
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2011-07-20-1.
Exploit likelihood
What each source reports
NVD Score used
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2011-07-20-1.
- Record
CVE-2011-0255- CVSS 2.0
- 9.3 High
AV:N/AC:M/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2011-07-20-1.
- Record
CVE-2011-0255- Updated
- 2026-11-02
EUVDEUVD-2011-0281 No score
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2011-07-20-1.
- Record
EUVD-2011-0281- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m3pc-v98h-rw9m No score
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code...
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2011-07-20-1.
- Record
GHSA-m3pc-v98h-rw9m- Weakness
- CWE-119
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2011-0255 No score
WebKit, as used in Apple Safari before 5.0.6, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site, a different vulnerability than other WebKit CVEs listed in APPLE-SA-2011-07-20-1.
- Record
UBUNTU-CVE-2011-0255- 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
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-0255 is a high vulnerability (CVSS 9.3) in Apple Safari, published July 21, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.92%, the 90th percentile. No source names a fixed version.