kbrain

CVE-2012-3555

HIGH · CVSS 7.6EPSS 3.7%EU EUVD

Opera before 11.65 does not ensure that keyboard sequences are associated with a visible window, which makes it easier for user-assisted remote attackers to conduct cross-site scripting (XSS) attacks or execute arbitrary code via a crafted web site, related to a "hidden keyboard navigation" issue.

Key facts

CVSS score
7.6 (v2.0)
Severity
HIGH
CVSS vector
AV:N/AC:H/Au:N/C:C/I:C/A:C
EPSS score
3.7% (90th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2012-3502)
Published
June 14, 2012
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-3502 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser
  • opera / opera browser

and 77 more…

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain