Is CVE-2019-11738 in the CISA KEV catalog?

No. CVE-2019-11738 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-11738?

CVE-2019-11738 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2019-11738?

CVE-2019-11738 has an EPSS score of 1.45% (70th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-11738?

Upgrade firefox on debian unstable to 69.0-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2019-11738

MEDIUMEPSS 70th pctl

6.3

CVSS v3

NVD

Description

If a Content Security Policy (CSP) directive is defined that uses a hash-based source that takes the empty string as input, execution of any javascript: URIs will be allowed. This could allow for malicious JavaScript content to be run, bypassing CSP permissions. This vulnerability affects Firefox < 69 and Firefox ESR < 68.1.

How to fix

Remediation Available

firefoxDebian

Fixed in:69.0-1CVE-2019-11738

firefoxUbuntu

Fixed in:69.0+build2-0ubuntu0.16.04.4USN-4122-1

Fixed in:69.0+build2-0ubuntu0.18.04.1USN-4122-1

DeveloperEditionWindows application

Affected:69.0Fixed in:69.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:69.0Fixed in:69.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:68.1.0Fixed in:68.1.0Mozilla

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

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

1.45%probability of exploitation in 30 days

70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

Exploit1

bugzilla.mozilla.org

Vendor Advisory2

Third-Party Advisory2

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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.