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CVE-2019-9816

N/A

Published: July 23, 2019 at 01:24 PM UTC

Updated: June 17, 2026 at 02:44 AM UTC

3 products affected across 1 vendorFirefoxThunderbirdFirefox ESR

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Severity

N/A

Exploit prediction

EPSS 6%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Firefox · Mozilla

95%

v < 67

Affected range stops below 67, so it looks safe — our inference, not a vendor statement

Affected range stops below 67.0, so it looks safe — our inference, not a vendor statement

Firefox ESR · Mozilla

95%

v < 60.7

Affected range stops below 60.7, so it looks safe — our inference, not a vendor statement

Thunderbird · Mozilla

95%

v < 60.7

Affected range stops below 60.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_MISCPermissions Required

Source: [email protected]

https://bugzilla.mozilla.org/show_bug.cgi?id=1536768

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.mozilla.org/security/advisories/mfsa2019-13/

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.mozilla.org/security/advisories/mfsa2019-14/

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.mozilla.org/security/advisories/mfsa2019-15/

CVSS

4.3MEDIUM[email protected]

Confidentiality: NONE
Integrity: PARTIAL
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-843

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