How severe is CVE-2011-1187?

CVE-2011-1187 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2011-1187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-1187?

CVE-2011-1187 primarily affects Google Chrome. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2011-1187?

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

When was CVE-2011-1187 published?

CVE-2011-1187 was published on 2011-03-11 and last updated on 2026-06-16.

CVE-2011-1187

CVE-2011-1187 is a medium-severity vulnerability in Google Chrome 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: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Google Chrome
Published: 2011-03-11
Last modified: 2026-06-16

Description

Google Chrome before 10.0.648.127 allows remote attackers to bypass the Same Origin Policy via unspecified vectors, related to an "error message leak."

Frequently asked questions

What is CVE-2011-1187?: Google Chrome before 10.0.648.127 allows remote attackers to bypass the Same Origin Policy via unspecified vectors, related to an "error message leak."
How severe is CVE-2011-1187?: CVE-2011-1187 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2011-1187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-1187?: CVE-2011-1187 primarily affects Google Chrome. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2011-1187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2011-1187 published?: CVE-2011-1187 was published on 2011-03-11 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

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