How severe is CVE-2012-0640?

CVE-2012-0640 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2012-0640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-0640?

CVE-2012-0640 primarily affects Apple Safari. In total, 98 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-0640?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-0640 published?

CVE-2012-0640 was published on 2012-03-12 and last updated on 2026-06-16.

CVE-2012-0640

CVE-2012-0640 is a medium-severity vulnerability in Apple Safari with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 1% (61st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Apple Safari
Published: 2012-03-12
Last modified: 2026-06-16

Description

WebKit in Apple Safari before 5.1.4 does not properly implement "From third parties and advertisers" cookie blocking, which makes it easier for remote web servers to track users via a cookie.

Frequently asked questions

What is CVE-2012-0640?: WebKit in Apple Safari before 5.1.4 does not properly implement "From third parties and advertisers" cookie blocking, which makes it easier for remote web servers to track users via a cookie.
How severe is CVE-2012-0640?: CVE-2012-0640 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-0640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (61st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-0640?: CVE-2012-0640 primarily affects Apple Safari. In total, 98 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-0640?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-0640 published?: CVE-2012-0640 was published on 2012-03-12 and last updated on 2026-06-16.

References

Affected products (98)

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0:beta:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0:beta2:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.0b1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.0b2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.3:85.8:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0.3:85.8.1:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.0b1:-:mac:*:*:*:*:*
cpe:2.3:a:apple:safari:1.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.4:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.2.5:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.2:312.5:*:*:*:*:*:*
cpe:2.3:a:apple:safari:1.3.2:312.6:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.1:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.2:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:*:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.8:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.9:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.9.2:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.3:417.9.3:*:*:*:*:*:*
cpe:2.3:a:apple:safari:2.0.4:*:*:*:*:*:*:*

More vulnerabilities in Apple Safari

CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2015-5780 — Critical (CVSS 10.0): The Safari Extensions implementation in Apple Safari before 9 does not require user confirmation before replacing an…
CVE-2014-1303 — Critical (CVSS 10.0): Heap-based buffer overflow in Apple Safari 7.0.2 allows remote attackers to execute arbitrary code and bypass a sandbox…
CVE-2014-1300 — Critical (CVSS 10.0): Unspecified vulnerability in Apple Safari 7.0.2 on OS X allows remote attackers to execute arbitrary code with root…
CVE-2011-3046 — Critical (CVSS 10.0): The extension subsystem in Google Chrome before 17.0.963.78 does not properly handle history navigation, which allows…
CVE-2010-3116 — Critical (CVSS 10.0): Multiple use-after-free vulnerabilities in WebKit, as used in Apple Safari before 4.1.3 and 5.0.x before 5.0.3, Google…

All CVEs affecting Apple Safari →

Other CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities

CVE-2026-27604 — Critical (CVSS 10.0): FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version…
CVE-2026-40965 — Critical (CVSS 10.0): Cloud Foundry UAA versions v76.12.0 through v78.12.0 are vulnerable to a private key exposure. The server contains a…
CVE-2026-42826 — Critical (CVSS 10.0): Exposure of sensitive information to an unauthorized actor in Azure DevOps allows an unauthorized attacker to disclose…
CVE-2025-29270 — Critical (CVSS 10.0): Incorrect access control in the realtime.cgi endpoint of Deep Sea Electronics devices DSE855 v1.1.0 to v1.1.26 allows…
CVE-2025-61481 — Critical (CVSS 10.0): An issue in MikroTik RouterOS v.7.14.2 and SwOS v.2.18 exposes the WebFig management interface over cleartext HTTP by…
CVE-2025-53624 — Critical (CVSS 10.0): The Docusaurus gists plugin adds a page to your Docusaurus instance, displaying all public gists of a GitHub user.…

Browse all CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) vulnerabilities →