CVE-2010-4586
The default configuration of Opera before 11.00 enables WebSockets functionality, which has unspecified impact and remote attack vectors, possibly a related issue to CVE-2010-4508.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The default configuration of Opera before 11.00 enables WebSockets functionality, which has unspecified impact and remote attack vectors, possibly a related issue to CVE-2010-4508.
- CVSS 2.0
- 10.0 HIGHAV:N/AC:L/Au:N/C:C/I:C/A:C
- EPSS
- 2.06% probability · 81th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-16
- Affected
- opera/opera browser
- Source
- cve@mitre.org
EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
- http://secunia.com/advisories/42653
- http://www.opera.com/docs/changelogs/mac/1100/
- http://www.opera.com/docs/changelogs/unix/1100/
- http://www.opera.com/docs/changelogs/windows/1100/
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00006.html
- http://secunia.com/advisories/42653
- http://www.opera.com/docs/changelogs/mac/1100/
- http://www.opera.com/docs/changelogs/unix/1100/
- http://www.opera.com/docs/changelogs/windows/1100/
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.