CVE-2007-6521: Critical severity opera Opera Browser vulnerability

Published Dec 24, 2007
·
Updated

Unspecified vulnerability in Opera before 9.25 allows remote attackers to execute arbitrary code via crafted TLS certificates.

Affected Software

102 affected components
opera Opera Browser=4.01
opera Opera Browser=7.01
opera Opera Browser=7.23
opera Opera Browser=2.10
opera Opera Browser=9.02
opera Opera Browser=2.10-beta2
opera Opera Browser=7.03
opera Opera Browser=7.53
opera Opera Browser=4.00-beta6
opera Opera Browser=8.50
opera Opera Browser=4.00-beta3
opera Opera Browser=5.0-beta2
opera Opera Browser=5.11
opera Opera Browser=3.51
opera Opera Browser=6.1
opera Opera Browser=7.20
opera Opera Browser=6.02
opera Opera Browser=2.00
opera Opera Browser=5.02
opera Opera Browser=1.00
opera Opera Browser=5.10
opera Opera Browser=8.53
opera Opera Browser=9.12
opera Opera Browser=7.11-beta2
opera Opera Browser=8.0
opera Opera Browser=4.00
opera Opera Browser=2.10-beta1
opera Opera Browser=6.04
opera Opera Browser=8.54
opera Opera Browser=6.11
opera Opera Browser=5.0-beta4
opera Opera Browser=6.05
opera Opera Browser=8.02
opera Opera Browser=9.20
opera Opera Browser=7.50-beta1
opera Opera Browser=3.10
opera Opera Browser=5.12
opera Opera Browser=4.02
opera Opera Browser=9.21
opera Opera Browser=7.10
opera Opera Browser=9.0-beta1
opera Opera Browser=6.0-tp3
opera Opera Browser=3.50
opera Opera Browser=9.23
opera Opera Browser=6.0-tp1
opera Opera Browser=8.0-beta3
opera Opera Browser=3.61
opera Opera Browser=5.0-beta8
opera Opera Browser=7.0-beta1_v2
opera Opera Browser<=9.24
opera Opera Browser=3.00-beta
opera Opera Browser=8.51
opera Opera Browser=5.0-beta5
opera Opera Browser=4.00-beta5
opera Opera Browser=7.50
opera Opera Browser=7.02
opera Opera Browser=7.21
opera Opera Browser=6.0-tp2
opera Opera Browser=5.0-beta7
opera Opera Browser=7.20-beta7
opera Opera Browser=7.54-update1
opera Opera Browser=9.20-beta1
opera Opera Browser=7.60
opera Opera Browser=7.11
opera Opera Browser=7.0-beta2
opera Opera Browser=4.00-beta2
opera Opera Browser=7.54
opera Opera Browser=9.0-beta2
opera Opera Browser=6.03
opera Opera Browser=3.00
opera Opera Browser=7.0-beta1
opera Opera Browser=9.22
opera Opera Browser=6.0-beta1
opera Opera Browser=3.62
opera Opera Browser=2.10-beta3
opera Opera Browser=9.01
opera Opera Browser=9.0
opera Opera Browser=3.60
opera Opera Browser=5.0
opera Opera Browser=7.51
opera Opera Browser=8.0-beta2
opera Opera Browser=9.10
opera Opera Browser=3.62-beta
opera Opera Browser=6.12
opera Opera Browser=6.0-beta2
opera Opera Browser=4.00-beta4
opera Opera Browser=5.0-beta3
opera Opera Browser=6.01
opera Opera Browser=8.52
opera Opera Browser=6.06
opera Opera Browser=7.52
opera Opera Browser=7.54-update2
opera Opera Browser=3.21
opera Opera Browser=5.0-beta6
opera Opera Browser=8.01
opera Opera Browser=6.1-beta1
opera Opera Browser=2.12
opera Opera Browser=8.0-beta1
opera Opera Browser=6.0
opera Opera Browser=7.22
opera Opera Browser=7.10-beta1
opera Opera Browser=7.0

Event History

Dec 24, 2007
CVE Published
08:46 PM
Dec 25, 2007
CVE Published
via MITRE·01:00 AM
Data Sourced
via MITRE·01:00 AM
Description

Frequently Asked Questions

1

What is the severity of CVE-2007-6521?

CVE-2007-6521 is considered to be a high severity vulnerability due to its potential to allow remote code execution.

2

How do I fix CVE-2007-6521?

To fix CVE-2007-6521, users should update their Opera browser to version 9.25 or later.

3

Which versions of Opera are affected by CVE-2007-6521?

CVE-2007-6521 affects multiple versions of Opera prior to 9.25, including various releases in the 2.x to 9.x range.

4

What type of attack does CVE-2007-6521 involve?

CVE-2007-6521 involves remote attackers exploiting crafted TLS certificates to execute arbitrary code on the victim's machine.

5

Is there a public exploit available for CVE-2007-6521?

While proof-of-concept exploits may exist, the specific details of exploitation are not widely published.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203