What’s Vulnerable › Vulnerabilities

CVE-2009-1234

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2009-04-02 · updated 2026-06-16
• Weakness: CWE-20

Description

Opera 9.64 allows remote attackers to cause a denial of service (application crash) via an XML document containing a long series of start-tags with no corresponding end-tags. NOTE: it was later reported that 9.52 is also affected.

Affected products

• Opera Browser: 9.52, 9.64

References

• http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
• http://websecurity.com.ua/3216/
• http://www.securityfocus.com/bid/34298
• https://exchange.xforce.ibmcloud.com/vulnerabilities/49522
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5432
• https://www.exploit-db.com/exploits/8320
• http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
• http://websecurity.com.ua/3216/
• http://www.securityfocus.com/bid/34298
• https://exchange.xforce.ibmcloud.com/vulnerabilities/49522
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5432
• https://www.exploit-db.com/exploits/8320

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