Is CVE-2018-5105 in the CISA KEV catalog?

No. CVE-2018-5105 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-5105?

CVE-2018-5105 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2018-5105?

CVE-2018-5105 has an EPSS score of 0.42% (34th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-5105?

Upgrade firefox on debian unstable to 58.0-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2018-5105

HIGH

7.8

CVSS v3

NVD

Description

WebExtensions can bypass user prompts to first save and then open an arbitrarily downloaded file. This can result in an executable file running with local user privileges without explicit user consent. This vulnerability affects Firefox < 58.

How to fix

Remediation Available

firefoxDebian

Fixed in:58.0-1CVE-2018-5105

firefoxUbuntu

Fixed in:58.0+build6-0ubuntu0.14.04.1USN-3544-1

Fixed in:58.0+build6-0ubuntu0.16.04.1USN-3544-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

0.42%probability of exploitation in 30 days

34thpercentile

Low risk: more likely to be exploited than 34% of all known CVEs.

References

Vendor Advisory1

mozilla.org

Third-Party Advisory3

Issue Tracking1

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.