CVE-2023-6861

Mozilla: Heap buffer overflow affected nsWindow::PickerOpen(void) in headless mode

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Severity

Moderate

Red Hat Product Security

8.8

CVSS 3.1

Review impact separately from score.

Published · December 19, 2023

Updated · November 21, 2025

Description

The Mozilla Foundation Security Advisory describes this flaw as:

The nsWindow::PickerOpen(void) method was susceptible to a heap buffer overflow when running in headless mode.

Statement

Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CWE-122 · Heap-based Buffer Overflow