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kasperskyKaspersky LabKLA12150
HistoryApr 19, 2021 - 12:00 a.m.

KLA12150 Multiple vulnerabilities in Mozilla Firefox ESR

2021-04-1900:00:00
Kaspersky Lab
threats.kaspersky.com
33

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

9.3 High

AI Score

Confidence

High

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

0.006 Low

EPSS

Percentile

78.3%

Detect date:

04/19/2021

Severity:

High

Description:

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to cause denial of service, bypass security restrictions, execute arbitrary code, spoof user interface, gain privileges.

Affected products:

Mozilla Firefox ESR earlier than 78.10

Solution:

Update to the latest version
Download Firefox ESR

Original advisories:

mfsa2021-15

Impacts:

ACE

Related products:

Mozilla Firefox ESR

CVE-IDS:

CVE-2021-239617.4High
CVE-2021-239948.8Critical
CVE-2021-299468.8Critical
CVE-2021-299456.5High
CVE-2021-240028.8Critical
CVE-2021-239986.5High
CVE-2021-239958.8Critical
CVE-2021-239998.8Critical

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

9.3 High

AI Score

Confidence

High

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

0.006 Low

EPSS

Percentile

78.3%