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CVE-2011-1187

18
FAUCET Score

CVE-2011-1187 describes a Same Origin Policy bypass vulnerability in Google Chrome versions prior to 10.0.648.127, as well as several Mozilla products including Firefox, SeaMonkey, and Thunderbird. This flaw, related to an "error message leak," allows remote attackers to potentially access sensitive information from other origins. With a CVSS score of 5.0, it is considered a medium-severity vulnerability, requiring no authentication and having low attack complexity, but only impacting confidentiality. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.0.648.127CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
< 12.0CPE matchmatch criteria
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
< 2.9CPE matchmatch criteria
cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
< 12.0CPE matchmatch criteria
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.68%
Probability of exploitation in next 30 days
EPSS Percentile
74.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0168 is in the 60th percentile among its peer group of 23,705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2011-1187

Multiple flaws in Firefox 12 which do not affect firefox 10.0.4 ESR

Apr 24, 2012

References

code.google.com / p/chromium/issues/detail
ExploitIssue TrackingVendor Advisory
googlechromereleases.blogspot.com / 2011/03/chrome-stable-release.html
Vendor Advisory
bugzilla.mozilla.org / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
secunia.com / advisories/48972
Third Party Advisory
secunia.com / advisories/49047
Third Party Advisory
secunia.com / advisories/49055
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/65951
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14369
Third Party Advisory
mozilla.org / security/announce/2012/mfsa2012-32.html
Third Party Advisory
securityfocus.com / bid/46785
Third Party AdvisoryVDB Entry
vupen.com / english/advisories/2011/0628
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