How severe is CVE-2013-6166?

CVE-2013-6166 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2013-6166 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-6166?

CVE-2013-6166 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-6166?

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

When was CVE-2013-6166 published?

CVE-2013-6166 was published on 2014-02-15 and last updated on 2026-06-17.

CVE-2013-6166

CVE-2013-6166 is a medium-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 6.8. 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-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 2% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Google Chrome
Published: 2014-02-15
Last modified: 2026-06-17

Description

Google Chrome before 29 sends HTTP Cookie headers without first validating that they have the required character-set restrictions, which allows remote attackers to conduct the equivalent of a persistent Logout CSRF attack via a crafted parameter that forces a web application to set a malformed cookie within an HTTP response.

Frequently asked questions

What is CVE-2013-6166?: Google Chrome before 29 sends HTTP Cookie headers without first validating that they have the required character-set restrictions, which allows remote attackers to conduct the equivalent of a persistent Logout CSRF attack via a crafted parameter that forces a web application to set a malformed cookie within an HTTP response.
How severe is CVE-2013-6166?: CVE-2013-6166 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2013-6166 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-6166?: CVE-2013-6166 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-6166?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-6166 published?: CVE-2013-6166 was published on 2014-02-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

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