peter bassill · operator
$ cve CVE-2018-18498 JSON

CVE-2018-18498

9.8
CRITICAL · CVSS 3.0 · EPSS 4% (pctl 90)

In your normal cycle

Critical by CVSS (9.8), but no sign of active exploitation.

Description

A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

Scoring

CVSS9.8 (CRITICAL, v3.0)
VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS4.03% — more likely to be exploited than 90% of all CVEs
WeaknessCWE-190
On CISA KEVno
Public exploitnone known
Published2019-02-28
Last modified2026-06-17

Affected (11)

VendorProduct
canonicalubuntu linux
debiandebian linux
mozillafirefox
mozillafirefox esr
mozillathunderbird
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux server aus
redhatenterprise linux server eus
redhatenterprise linux server tus
redhatenterprise linux workstation

References

→ the Explorer  ·  watch your stack  ·  NVD