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kasperskyKaspersky LabKLA12353
HistoryNov 17, 2021 - 12:00 a.m.

KLA12353 Multiple vulnerabilities in Opera

2021-11-1700:00:00
Kaspersky Lab
threats.kaspersky.com
30

9.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

8.5 High

AI Score

Confidence

Low

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.019 Low

EPSS

Percentile

88.4%

JSON

Detect date:

11/17/2021

Severity:

High

Description:

Multiple vulnerabilities were found in Opera. Malicious users can exploit these vulnerabilities to bypass security restrictions, execute arbitrary code, cause denial of service.

Exploitation:

Public exploits exist for this vulnerability.

Affected products:

Opera earlier than 81.0.4196.54

Solution:

Update to the latest version
Download Opera

Original advisories:

Changelog for Opera 81
Stable Channel Update for Desktop

Impacts:

ACE

Related products:

Opera

CVE-IDS:

CVE-2021-379996.1High
CVE-2021-380038.8Critical
CVE-2021-380006.1High
CVE-2021-380029.6Critical
CVE-2021-379978.8Critical
CVE-2021-379988.8Critical
CVE-2021-380018.8Critical
CVE-2021-380044.3Warning

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9.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

8.5 High

AI Score

Confidence

Low

6.8 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.019 Low

EPSS

Percentile

88.4%

JSON
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