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kasperskyKaspersky LabKLA11949
HistoryAug 31, 2020 - 12:00 a.m.

KLA11949 DoS vulnerability in Opera

2020-08-3100:00:00
Kaspersky Lab
threats.kaspersky.com
26

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

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

AI Score

8.9

Confidence

High

EPSS

0.008

Percentile

82.0%

JSON

A heap buffer overflow vulnerability was found in Opera. Malicious users can exploit this vulnerability to cause denial of service.

Original advisories

Changelog for Opera 70

Stable Channel Update for Desktop

Related products

Opera

CVE list

CVE-2020-6556 critical

Solution

Update to the latest version

Download Opera

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 70.0.3728.144

Related

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CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

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

AI Score

8.9

Confidence

High

EPSS

0.008

Percentile

82.0%

JSON
Related for KLA11949
nessus11cvelist1redhatcve1cve1debiancve1suse3veracode1freebsd1prion1ubuntucve1openvas6nvd1kaspersky1gentoo1chrome1redhat1fedora3debian1osv1mscve1