SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2010-4584

Opera before 11.00, when Opera Turbo is used, does not properly present information about problematic X.509 certificates on https web sites, which might make it easier for remote attackers to spoof trusted content via a crafted web site.

LOW 2.6EPSS 0.91%

Does this matter?

Lower severity and a low EPSS score (0.91%). Track it; it rarely justifies an emergency change on its own.

Description

Opera before 11.00, when Opera Turbo is used, does not properly present information about problematic X.509 certificates on https web sites, which might make it easier for remote attackers to spoof trusted content via a crafted web site.

CVSS 2.0
2.6 LOWAV:N/AC:H/Au:N/C:N/I:P/A:N
EPSS
0.91% probability · 60th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-310
Affected
opera/opera browser
Source
cve@mitre.org
EPSS trend
0%3%5%26 October 2026: 0.91%26 October 202626 October 2026

EPSS 0.9% 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.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.