CVE-2026-100823
Spoofing issue in the Downloads component in Firefox for Android
MEDIUM
5.4
CVSS Score
Published: September 29, 2026 at 12:36 PM UTC
Updated: October 5, 2026 at 04:58 PM UTC
1 product affected across 1 vendorFirefox Mobile
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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
Spoofing issue in the Downloads component in Firefox for Android. This vulnerability was fixed in Firefox 157.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 157.0
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
ExploitIssue TrackingMitigation
Source: cverecord
https://bugzilla.mozilla.org/show_bug.cgi?id=2054384SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
5.4MEDIUMCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusANALYZED
CWE
CWE-451
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