How severe is CVE-2011-2840?

CVE-2011-2840 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2011-2840 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-2840?

CVE-2011-2840 affects Google Chrome. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-2840?

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

When was CVE-2011-2840 published?

CVE-2011-2840 was published on 2011-09-19 and last updated on 2026-06-16.

CVE-2011-2840

CVE-2011-2840 is a medium-severity vulnerability in Google Chrome with a CVSS 2.0 base score of 4.3. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Google Chrome
Published: 2011-09-19
Last modified: 2026-06-16

Description

Google Chrome before 14.0.835.163 allows user-assisted remote attackers to spoof the URL bar via vectors related to "unusual user interaction."

Frequently asked questions

What is CVE-2011-2840?: Google Chrome before 14.0.835.163 allows user-assisted remote attackers to spoof the URL bar via vectors related to "unusual user interaction."
How severe is CVE-2011-2840?: CVE-2011-2840 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2011-2840 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-2840?: CVE-2011-2840 affects Google Chrome. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-2840?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-2840 published?: CVE-2011-2840 was published on 2011-09-19 and last updated on 2026-06-16.

References

Affected products (1)

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

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