Mozilla developers and community members Ronald Crane, Andrew McCreight, Randell Jesup and the Mozilla Fuzzing Team reported memory safety…

published 2023-06-19 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-36474

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

Mozilla developers and community members Ronald Crane, Andrew McCreight, Randell Jesup and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 112. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 113.

Patch / fix

fixed in 1 distros 2

Mozilla Firefox 113

ubuntu opensuse

firefox Ubuntu 18.04 LTS 113.0+build2-0ubuntu0.18.04.1
firefox Ubuntu 20.04 LTS 113.0+build2-0ubuntu0.20.04.1

ubuntu advisories UBUNTU-CVE-2023-32216

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

firefox-esr openSUSE Tumbleweed 128.5.1-1.1
MozillaFirefox openSUSE Tumbleweed 113.0-1.1

opensuse advisories openSUSE-SU-2024:14572-1 openSUSE-SU-2024:12920-1

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Mozilla Firefox

Classification

Weakness

CWE-787 Out-of-bounds Write

References

Sources

CVE List CVE-2023-32216
NVD CVE-2023-32216

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Summary