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CVE-2025-10533: firefox before 115.28.0 (exclusive), before 143.0 (exclusive), from 116.0 (inclusive), before 140.3 (exclusive); +1…
CVE-2025-10533. CVSS 3.1 base score 8.8 (HIGH, Source advisory). EPSS 0.00754 (percentile 0.54196), scored 17-Oct-2026.
Affected technology
firefox · before 115.28.0 (exclusive)
mozilla
firefox · before 143.0 (exclusive)
mozilla
firefox · from 116.0 (inclusive), before 140.3 (exclusive)
mozilla
thunderbird · before 140.3.0 (exclusive)
mozilla
thunderbird · from 141.0 (inclusive), before 143.0 (exclusive)
mozilla
Component: Not specified by the source
Attack conditions (Source advisory, CVSS 3.1): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
Source advisory’s CVSS 3.1 assessment (base score 8.8/10) rates confidentiality, integrity and availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CWE
- CWE-190
- CCR priority
- 35.4 /100 (P4)
- CVSS 3.1
- 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · Source advisory
- EPSS
- 0.00754 · percentile 0.54196 · 2026-10-17
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-18 22:50:08.248207+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2025-10533.html