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Fencer Intel
critical 10.0

CVE-2011-2628 in the critical feed json

Opera before 11.11 does not properly implement FRAMESET elements, which allows remote attackers to execute arbitrary code or cause a denial…

published 2011-07-01 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-2611

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.6%
EPSS 13.6% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

Opera before 11.11 does not properly implement FRAMESET elements, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to page unload.

Timeline

  1. Published
  2. First public exploit (EDB-17936)

Exploit prediction

13.64% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-17936 Opera 10/11 - Bad Nesting with Frameset Tag Memory Corruption (Metasploit) remote, 2011-10-06

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.