Kaspersky LabKLA12179KLA12179 DoS vulnerability in Opera
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.6 High
AI Score
Confidence
High
0.016 Low
EPSS
Percentile
87.6%
A heap buffer overflow vulnerability was found in Opera. Malicious users can exploit this vulnerability to cause denial of service.
Original advisories
Stable Channel Update for Desktop
Related products
CVE list
CVE-2021-21148 critical
Solution
Update to the latest version
Impacts
- DoS
Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.
Affected Products
- Opera earlier than 74.0.3911.107
Related
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
9.6 High
AI Score
Confidence
High
0.016 Low
EPSS
Percentile
87.6%