CVE-2020-35112

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

If a user downloaded a file lacking an extension on Windows, and then "Open"-ed it from the downloads panel, if there was an executable file in the downloads directory with the same name but with an executable extension (such as .bat or .exe) that executable would have been launched instead. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1661365

https://www.mozilla.org/security/advisories/mfsa2020-54/

https://www.mozilla.org/security/advisories/mfsa2020-55/

https://www.mozilla.org/security/advisories/mfsa2020-56/

Details

Source: MITRE

Published: 2021-01-07

Updated: 2021-01-12

Risk Information

CVSS v2

Base Score: 6.8

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

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

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

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
150596SUSE SLES11 Security Update : MozillaFirefox (SUSE-SU-2020:14584-1)NessusSuSE Local Security Checks
high
145372openSUSE Security Update : MozillaFirefox (openSUSE-2020-2318)NessusSuSE Local Security Checks
high
145362openSUSE Security Update : MozillaThunderbird (openSUSE-2020-2317)NessusSuSE Local Security Checks
high
145332openSUSE Security Update : MozillaThunderbird (openSUSE-2020-2324)NessusSuSE Local Security Checks
high
145294openSUSE Security Update : MozillaFirefox (openSUSE-2020-2325)NessusSuSE Local Security Checks
high
144575SUSE SLES12 Security Update : MozillaFirefox (SUSE-SU-2020:3903-1)NessusSuSE Local Security Checks
high
144571SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:3902-1)NessusSuSE Local Security Checks
high
144532SUSE SLED15 / SLES15 Security Update : MozillaFirefox (SUSE-SU-2020:3901-1)NessusSuSE Local Security Checks
high
144285Mozilla Thunderbird < 78.6NessusMacOS X Local Security Checks
high
144284Mozilla Thunderbird < 78.6NessusWindows
high
144283Mozilla Firefox < 84.0NessusMacOS X Local Security Checks
critical
144282Mozilla Firefox < 84.0NessusWindows
critical
144278Mozilla Firefox ESR < 78.6NessusWindows
high
144277Mozilla Firefox ESR < 78.6NessusMacOS X Local Security Checks
high