Is CVE-2020-35112 in the CISA KEV catalog?

No. CVE-2020-35112 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-35112?

CVE-2020-35112 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2020-35112?

CVE-2020-35112 has an EPSS score of 1.29% (67th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-35112?

Upgrade DeveloperEdition to 84.0 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2020-35112

HIGH

8.8

CVSS v3

NVD

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.

How to fix

Remediation Available

DeveloperEditionWindows application

Affected:84.0Fixed in:84.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:84.0Fixed in:84.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:78.6.0Fixed in:78.6.0Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:78.6.0Fixed in:78.6.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.29%probability of exploitation in 30 days

67thpercentile

Moderate risk: more likely to be exploited than 67% of all known CVEs.

References

Vendor Advisory3

Other references1

bugzilla.mozilla.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.