Mozilla Thunderbird

CVE-2019-9795

CRITICAL 9.8

At a glance

Source: NVD
EPSS: EPSS 1.70 % · percentile 77 (2026-10-31)
State: PUBLISHED
Published: 2019-04-26 16:13 UTC
Updated: 2024-08-04 22:01 UTC
Assigner: mozilla
NVD status: Modified

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Description

A vulnerability where type-confusion in the IonMonkey just-in-time (JIT) compiler could potentially be used by malicious JavaScript to trigger a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

Weaknesses (CWE)

CWE-617 — Reachable Assertion
CWE-843 — Access of Resource Using Incompatible Type

References

Scores

Version	Score	Vector	Scored by
CVSS 3.0	CRITICAL 9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	HIGH 7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P	NVD · nvd@nist.gov (Primary)

European references

ENISA EUVD · EUVD-2019-19157
GCVE · GCVE-0-2019-9795

CERT-FR advisories

CERTFR-2019-AVI-118 — Multiples vulnérabilités dans Mozilla Firefox · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* < 66.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* < 60.6
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* < 60.6

Affected products

Product	Versions
Mozilla · Thunderbird	affected unspecified < 60.6
Mozilla · Firefox ESR	affected unspecified < 60.6
Mozilla · Firefox	affected unspecified < 66

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

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