peter bassill · operator
$ cve CVE-2018-18493 JSON

CVE-2018-18493

9.8
CRITICAL · CVSS 3.0 · EPSS 5% (pctl 92)

In your normal cycle

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

Description

A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. 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
EPSS4.98% — more likely to be exploited than 92% of all CVEs
WeaknessCWE-119
On CISA KEVno
Public exploitnone known
Published2019-02-28
Last modified2026-06-17

Affected (10)

VendorProduct
canonicalubuntu linux
debiandebian linux
mozillafirefox
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