CVE-2022-26383
MEDIUM
4.3
CVSS Score
Published: December 22, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:35 AM UTC
3 products affected across 1 vendorFirefoxThunderbirdFirefox ESR
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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.7%
SSVC
PoC
Description
When resizing a popup after requesting fullscreen access, the popup would not display the fullscreen notification. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 98
Affected range stops below 98, so it looks safe — our inference, not a vendor statement
Affected range stops below 98.0, so it looks safe — our inference, not a vendor statement
v < 91.7
Affected range stops below 91.7, so it looks safe — our inference, not a vendor statement
v < 91.7
Affected range stops below 91.7, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
Issue TrackingVendor Advisory
Source: [email protected]
https://bugzilla.mozilla.org/show_bug.cgi?id=1742421SSVC — Action Prioritization
SSVCPoCNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
4.3MEDIUMCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-451
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