Is CVE-2019-9816 in the CISA KEV catalog?

No. CVE-2019-9816 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-9816?

CVE-2019-9816 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2019-9816?

CVE-2019-9816 has an EPSS score of 6.17% (93th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-9816?

Upgrade firefox on debian unstable to 67.0-2 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2019-9816

MEDIUMEPSS 93th pctl

5.9

CVSS v3

NVD

Description

A possible vulnerability exists where type confusion can occur when manipulating JavaScript objects in object groups, allowing for the bypassing of security checks within these groups. *Note: this vulnerability has only been demonstrated with UnboxedObjects, which are disabled by default on all supported releases.*. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

CWE-843Type Confusion

How to fix

Remediation Available

firefoxDebian

Fixed in:67.0-2CVE-2019-9816

firefoxUbuntu

Fixed in:67.0+build2-0ubuntu0.16.04.1USN-3991-1

Fixed in:67.0+build2-0ubuntu0.18.04.1USN-3991-1

thunderbirdUbuntu

Fixed in:1:60.7.0+build1-0ubuntu0.16.04.1USN-3997-1

Fixed in:1:60.7.0+build1-0ubuntu0.18.04.1USN-3997-1

DeveloperEditionWindows application

Affected:67.0Fixed in:67.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:67.0Fixed in:67.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:60.7Fixed in:60.7Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:60.7Fixed in:60.7Mozilla

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 ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

6.17%probability of exploitation in 30 days

93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

Vendor Advisory3

Other references1

bugzilla.mozilla.org

Related Vulnerabilities

Other CWE-843 (Type Confusion) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-0611	High	8.8	99%	KEV	Fix
CVE-2012-0507	Critical	9.8	98%	KEV + Ransom	-
CVE-2017-8291	High	7.8	97%	KEV	Fix
CVE-2019-0752	High	7.5	82%	KEV + Ransom	-
CVE-2017-0037	High	8.1	80%	KEV	-
CVE-2016-7201	High	8.8	80%	KEV	-

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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.