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CVE-2026-6762
ANC
Medium

Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thun…

CVSS
6.3
Medium
EPSS
0.00
p5
Published
2026-01-01
Updated
2026-01-01
Description

Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

Tags · CWE
Pre-auth
CWE-290
CAPEC-21
CAPEC-22
CAPEC-59
CAPEC-60
CAPEC-94
CAPEC-459
CAPEC-461
CAPEC-473
CAPEC-476
CAPEC-667
Affected products
Firefox < 140.10.0Firefox < 150.0Thunderbird 140.0–140.10.0
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: R
Required (R)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: L
Low (L)
Integrity Impact
I: L
Low (L)
Availability Impact
A: L
Low (L)
Exploit indicators
EPSS
0.002 · p5
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-473 · CWE-290
└ via CAPEC-21 · CWE-290
└ via CAPEC-60 · CWE-290
└ via CAPEC-21 · CWE-290
└ via CAPEC-21 · CWE-290
└ via CAPEC-60 · CWE-290
└ via CAPEC-473 · CWE-290
└ via CAPEC-94 · CWE-290
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected software
ProductVendorStatus
Tracked
Tracked
firefoxTracked
firefox-esrTracked
thunderbirdTracked
firefox*Tracked
thunderbird*Tracked