CVE-2009-3831

CRITICAL 9.3CVE-2009-3831 · Published 30/10/2009 · updated 16/06/2026

In short

CVE-2009-3831 is a CRITICAL (CVSS 9.3) vulnerability affecting opera browser (opera).
Chance of exploitation in the next 30 days (EPSS): 5.7%, higher than 93.0% of all vulnerabilities.
Fix: update to 10.01 or later.

Package	Affected versions	Patched versions
opera browser opera	`< 10.01`	`10.01`

Description

Opera before 10.01 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted domain name.

References

secunia.com/advisories/37182 · Broken Link
opera.com/docs/changelogs/mac/1001 · Broken Link
opera.com/docs/changelogs/unix/1001 · Broken Link
opera.com/docs/changelogs/windows/1001 · Broken Link
opera.com/support/kb/view/938 · Broken Link
osvdb.org/59357 · Broken Link
securityfocus.com/bid/36850 · Broken Link
vupen.com/english/advisories/2009/3073 · Broken Link
exchange.xforce.ibmcloud.com/vulnerabilities/54020 · Third Party Advisory
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6574 · Tool Signature

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Package

Affected versions

Patched versions

opera browser

opera

< 10.01

10.01

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