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CVE-2026-12298: firefox before 152.0 (exclusive), from 140.0 (inclusive), before 140.12.0 (exclusive); +17 more affected products
CVE-2026-12298. CVSS 3.1 base score 5.4 (MEDIUM, Source advisory). EPSS 0.00306 (percentile 0.21997), scored 20-Oct-2026.
Affected technology
firefox · before 152.0 (exclusive)
mozilla
firefox · from 140.0 (inclusive), before 140.12.0 (exclusive)
mozilla
thunderbird · before 152.0.0 (exclusive)
mozilla
thunderbird · from 140.0 (inclusive), before 140.12.0 (exclusive)
mozilla
Red Hat Enterprise Linux 10 · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 10.0 Extended Update Support · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 7 Extended Lifecycle Support · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 8 · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 8.8 Telecommunications Update Service · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 9 · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 9.6 Extended Update Support · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 6 · Exact affected versions not specified by the source
Red Hat
Red Hat Enterprise Linux 7 · Exact affected versions not specified by the source
Red Hat
Component: Not specified by the source
Attack conditions (Source advisory, 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
Source advisory’s CVSS 3.1 assessment (base score 5.4/10) rates confidentiality and integrity impact as low; availability impact as none. Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-125, CWE-416, CWE-787, CWE-843
- CCR priority
- 21.7 /100 (P4)
- CVSS 3.1
- 5.4 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N · Source advisory
- EPSS
- 0.00306 · percentile 0.21997 · 2026-10-20
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-21 16:09:05.633125+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-12298.html