Opera before 12.00 Beta allows remote attackers to cause a denial of service (application crash) via a web page that contains invalid character encodings.
CVE-2012-3563
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 1%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 65.0%
- KEV
- Not listed
Published
June 14, 2012
Last Modified
April 29, 2026
References (4)
- cve@mitrehttp://www.opera.com/docs/changelogs/windows/1200b/
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/76358
- af854a3a-2127-422b-91ae-364da2661108http://www.opera.com/docs/changelogs/windows/1200b/
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/76358
Frequently asked(4)
What is CVE-2012-3563?
CVE-2012-3563 is a none vulnerability published on June 14, 2012. Opera before 12.00 Beta allows remote attackers to cause a denial of service (application crash) via a web page that contains invalid character encodings.
When was CVE-2012-3563 disclosed?
CVE-2012-3563 was first published in the National Vulnerability Database on June 14, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-3563 actively exploited?
CVE-2012-3563 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 65.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2012-3563?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-3563, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2012-3563
Is Your Infrastructure Affected by CVE-2012-3563?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.