CVE-2023-0767: firefox before 110.0 (exclusive); +5 more affected products

CVE-2023-0767. CVSS 3.1 base score 8.8 (HIGH, NVD). EPSS 0.00817 (percentile 0.56685), scored 22-Oct-2026.

Affected technology

firefox · before 110.0 (exclusive)
mozilla

firefox esr · before 102.8 (exclusive)
mozilla

thunderbird · before 102.8 (exclusive)
mozilla

Firefox · unspecified to before 110
Mozilla

Thunderbird · unspecified to before 102.8
Mozilla

Firefox ESR · unspecified to before 102.8
Mozilla

Component: Not specified by the source

Attack conditions (NVD, CVSS 3.1): Network (remote) · No privileges required · User interaction required

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · User interaction required

What an attacker can do

An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes via PKCS 12 Safe Bag attributes being mishandled. NVD’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high.

Published 24-Oct-2026 15:08 UTC

CCR priority: 35.4 /100 (P4)
CVSS 3.1: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · NVD
EPSS: 0.00817 · percentile 0.56754 · 2026-10-24
KEV: no

Provenance

FIRST EPSS daily exploit-probability · Source record · observed 2026-10-24 15:09:16.138216+00:00 UTC
NVD CVE API 2.0 · Source record · observed 2026-10-24 15:07:27.951960+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2023-0767.html