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Vulnerabilities

Vulnerability · CVE-2010-3257

Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allow…

Published Sep 7, 2010 · catalog updated Jun 16, 2026 · Apple

Check if you run it

No confirmed exploitation is on record for CVE-2010-3257. EPSS is 3.31%. Act only if a listed version of Apple is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
3.31%
Remediation
Version ranges on file
Affected products
cpe apple/iphone os · cpe apple/safari · cpe canonical/ubuntu linux · cpe google/chrome · cpe webkitgtk/webkitgtk

Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving element focus.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apple/iphone os< 4.2
  • cpe apple/safari< 4.1.3
  • cpe apple/safari< 5.0.3
  • cpe canonical/ubuntu linux10.04
  • cpe canonical/ubuntu linux10.10
  • cpe canonical/ubuntu linux9.10
  • cpe google/chrome< 6.0.472.53
  • cpe webkitgtk/webkitgtk< 1.2.6

How to fix CVE-2010-3257

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2010-3257. EPSS is 3.31%. Act only if a listed version of Apple is installed.

Which versions are affected?

Compare what you have installed with apple/iphone os < 4.2; canonical/ubuntu linux 10.04; canonical/ubuntu linux 10.10; canonical/ubuntu linux 9.10. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-416: Use After Free. EPSS 3.31%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 7, 2010 · Apple Security Releases

    Detected

    Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving element focus.

  2. Jun 16, 2026 · Apple Security Releases

    Updated

    Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving element focus.

Sources

  • Apple Security ReleasesVendor advisoryCVE-2010-3257

    Use-after-free vulnerability in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google Chrome before 6.0.472.53, and webkitgtk before 1.2.6, allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via vectors involving element focus.

    nvd.nist.gov
  • CVE.orgVulnerability recordCVE-2010-3257

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2010-3257

    30-day exploitation probability 3.31%

    first.org

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.