What’s Vulnerable › Vulnerabilities

CVE-2007-5276

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2007-10-08 · updated 2026-06-16

Description

Opera 9 drops DNS pins based on failed connections to irrelevant TCP ports, which makes it easier for remote attackers to conduct DNS rebinding attacks, as demonstrated by a port 81 URL in an IMG SRC, when the DNS pin had been established for a session on port 80.

Affected products

• Opera Browser: 9.0

References

• http://crypto.stanford.edu/dns/dns-rebinding.pdf
• http://osvdb.org/45526
• http://crypto.stanford.edu/dns/dns-rebinding.pdf
• http://osvdb.org/45526

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