Vulnerability Monitor

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CVE-2011-3388

Opera before 11.51 allows remote attackers to cause an insecure site to appear secure or trusted via unspecified actions related to Extended Validation and loading content from trusted sources in an unspecified sequence that causes the address field and page information dialog to contain security information based on the trusted site, instead of the insecure site.

Security Impact Summary

CVE-2011-3388 is a security vulnerability that . Impacting 1 product from opera organizations running these solutions should prioritize assessment and patching.

Historical Context

Documented in 2011, this vulnerability occurred amid the cloud computing expansion era, where traditional network perimeter security models were being reevaluated. Organizations were transitioning from isolated infrastructure to interconnected systems, creating new attack surfaces that vulnerabilities like this could exploit.

Published

2011-09-06T19:55:03.133

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	opera	opera_browser	≤ 11.50	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.0	Yes
Application	opera	opera_browser	5.02	Yes
Application	opera	opera_browser	5.10	Yes
Application	opera	opera_browser	5.11	Yes
Application	opera	opera_browser	5.12	Yes
Application	opera	opera_browser	6.0	Yes
Application	opera	opera_browser	6.0	Yes
Application	opera	opera_browser	6.0	Yes
Application	opera	opera_browser	6.0	Yes
Application	opera	opera_browser	6.0	Yes
Application	opera	opera_browser	6.0	Yes
Application	opera	opera_browser	6.1	Yes
Application	opera	opera_browser	6.01	Yes
Application	opera	opera_browser	6.1	Yes
Application	opera	opera_browser	6.02	Yes
Application	opera	opera_browser	6.03	Yes
Application	opera	opera_browser	6.04	Yes
Application	opera	opera_browser	6.05	Yes
Application	opera	opera_browser	6.06	Yes
Application	opera	opera_browser	6.11	Yes
Application	opera	opera_browser	6.12	Yes
Application	opera	opera_browser	7.0	Yes
Application	opera	opera_browser	7.0	Yes
Application	opera	opera_browser	7.0	Yes
Application	opera	opera_browser	7.0	Yes
Application	opera	opera_browser	7.01	Yes
Application	opera	opera_browser	7.02	Yes
Application	opera	opera_browser	7.03	Yes
Application	opera	opera_browser	7.10	Yes
Application	opera	opera_browser	7.10	Yes
Application	opera	opera_browser	7.11	Yes
Application	opera	opera_browser	7.11	Yes
Application	opera	opera_browser	7.20	Yes
Application	opera	opera_browser	7.20	Yes
Application	opera	opera_browser	7.21	Yes
Application	opera	opera_browser	7.22	Yes
Application	opera	opera_browser	7.23	Yes
Application	opera	opera_browser	7.50	Yes
Application	opera	opera_browser	7.50	Yes
Application	opera	opera_browser	7.51	Yes
Application	opera	opera_browser	7.52	Yes
Application	opera	opera_browser	7.53	Yes
Application	opera	opera_browser	7.54	Yes
Application	opera	opera_browser	7.54	Yes
Application	opera	opera_browser	7.54	Yes
Application	opera	opera_browser	7.60	Yes
Application	opera	opera_browser	8.0	Yes
Application	opera	opera_browser	8.0	Yes
Application	opera	opera_browser	8.0	Yes
Application	opera	opera_browser	8.0	Yes
Application	opera	opera_browser	8.01	Yes
Application	opera	opera_browser	8.02	Yes
Application	opera	opera_browser	8.50	Yes
Application	opera	opera_browser	8.51	Yes
Application	opera	opera_browser	8.52	Yes
Application	opera	opera_browser	8.53	Yes
Application	opera	opera_browser	8.54	Yes
Application	opera	opera_browser	9.0	Yes
Application	opera	opera_browser	9.0	Yes
Application	opera	opera_browser	9.0	Yes
Application	opera	opera_browser	9.01	Yes
Application	opera	opera_browser	9.02	Yes
Application	opera	opera_browser	9.10	Yes
Application	opera	opera_browser	9.12	Yes
Application	opera	opera_browser	9.20	Yes
Application	opera	opera_browser	9.20	Yes
Application	opera	opera_browser	9.21	Yes
Application	opera	opera_browser	9.22	Yes
Application	opera	opera_browser	9.23	Yes
Application	opera	opera_browser	9.24	Yes
Application	opera	opera_browser	9.25	Yes
Application	opera	opera_browser	9.26	Yes
Application	opera	opera_browser	9.27	Yes
Application	opera	opera_browser	9.50	Yes
Application	opera	opera_browser	9.50	Yes
Application	opera	opera_browser	9.50	Yes
Application	opera	opera_browser	9.51	Yes
Application	opera	opera_browser	9.52	Yes
Application	opera	opera_browser	9.60	Yes
Application	opera	opera_browser	9.60	Yes
Application	opera	opera_browser	9.61	Yes
Application	opera	opera_browser	9.62	Yes
Application	opera	opera_browser	9.63	Yes
Application	opera	opera_browser	9.64	Yes
Application	opera	opera_browser	10.00	Yes
Application	opera	opera_browser	10.00	Yes
Application	opera	opera_browser	10.00	Yes
Application	opera	opera_browser	10.00	Yes
Application	opera	opera_browser	10.01	Yes
Application	opera	opera_browser	10.10	Yes
Application	opera	opera_browser	10.10	Yes
Application	opera	opera_browser	10.50	Yes
Application	opera	opera_browser	10.50	Yes
Application	opera	opera_browser	10.50	Yes
Application	opera	opera_browser	10.51	Yes
Application	opera	opera_browser	10.52	Yes
Application	opera	opera_browser	10.53	Yes
Application	opera	opera_browser	10.53	Yes
Application	opera	opera_browser	10.54	Yes
Application	opera	opera_browser	10.60	Yes
Application	opera	opera_browser	10.60	Yes
Application	opera	opera_browser	10.61	Yes
Application	opera	opera_browser	10.62	Yes
Application	opera	opera_browser	10.63	Yes
Application	opera	opera_browser	11.00	Yes
Application	opera	opera_browser	11.00	Yes
Application	opera	opera_browser	11.00	Yes
Application	opera	opera_browser	11.01	Yes
Application	opera	opera_browser	11.10	Yes
Application	opera	opera_browser	11.10	Yes
Application	opera	opera_browser	11.50	Yes
Application	opera	opera_browser	11.50	Yes

References

http://osvdb.org/74828 ([email protected])
http://secunia.com/advisories/45791 Vendor Advisory ([email protected])
http://www.opera.com/docs/changelogs/mac/1151/ ([email protected])
http://www.opera.com/docs/changelogs/unix/1151/ ([email protected])
http://www.opera.com/docs/changelogs/windows/1151/ ([email protected])
http://www.opera.com/support/kb/view/1000/ Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/49388 ([email protected])
http://www.securitytracker.com/id?1025997 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/69515 ([email protected])
http://osvdb.org/74828 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/45791 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.opera.com/docs/changelogs/mac/1151/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.opera.com/docs/changelogs/unix/1151/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.opera.com/docs/changelogs/windows/1151/ (af854a3a-2127-422b-91ae-364da2661108)
http://www.opera.com/support/kb/view/1000/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/49388 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1025997 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/69515 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For opera's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.