CRITICAL
CVE-2009-3831
CWE-787Published: October 30, 2009· Updated: Jun 16, 2026
9.3
CVSS v3.1
Official 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.
Technical Analysis
CVE-2009-3831 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:N/AC:M/Au:N/C:C/I:C/A:C
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (20)
→
http://secunia.com/advisories/37182Broken Link
→
http://www.opera.com/docs/changelogs/mac/1001/Broken Link · Vendor Advisory
→
http://www.opera.com/docs/changelogs/unix/1001/Broken Link · Vendor Advisory
→
http://www.opera.com/docs/changelogs/windows/1001/Broken Link · Vendor Advisory
→
http://www.opera.com/support/kb/view/938/Broken Link · Vendor Advisory
→
http://www.osvdb.org/59357Broken Link
→
http://www.securityfocus.com/bid/36850Broken Link · Third Party Advisory · VDB Entry
→
http://www.vupen.com/english/advisories/2009/3073Broken Link · Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/54020Third Party Advisory · VDB Entry
→
→
http://secunia.com/advisories/37182Broken Link
→
http://www.opera.com/docs/changelogs/mac/1001/Broken Link · Vendor Advisory
→
http://www.opera.com/docs/changelogs/unix/1001/Broken Link · Vendor Advisory
→
http://www.opera.com/docs/changelogs/windows/1001/Broken Link · Vendor Advisory
→
http://www.opera.com/support/kb/view/938/Broken Link · Vendor Advisory
Quick Facts
CVE IDCVE-2009-3831
CVSS Score9.3 / 10
SeverityCRITICAL
WeaknessCWE-787
CISA KEVNo
Affected2 vendor(s)
PublishedOct 30, 2009
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2009-3831 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.