CVE-2026-12293: Vulnerability in Mozilla Firefox
CVE-2026-12293 is a use-after-free vulnerability in the Graphics: WebGPU component of Mozilla Firefox. This security flaw was addressed and fixed in Firefox version 152. The vulnerability is considered high impact due to the potential memory safety issues it presents. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the WebGPU graphics component of Mozilla Firefox. Use-after-free bugs can lead to memory corruption, potentially allowing attackers to execute arbitrary code or cause denial of service. Mozilla fixed this issue in Firefox 152 as part of a broader set of memory safety fixes. The vendor advisory classifies the impact as high and references Bug 2039568 for technical details.
Potential Impact
The vulnerability poses a high impact risk due to its nature as a use-after-free bug in a critical graphics component, which could lead to memory corruption and potentially arbitrary code execution. However, there are no known exploits in the wild currently reported.
Mitigation Recommendations
A fix for this vulnerability is available in Firefox 152. Users and administrators should update to Firefox 152 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-12293: Vulnerability in Mozilla Firefox
Description
CVE-2026-12293 is a use-after-free vulnerability in the Graphics: WebGPU component of Mozilla Firefox. This security flaw was addressed and fixed in Firefox version 152. The vulnerability is considered high impact due to the potential memory safety issues it presents. No known exploits are reported in the wild at this time.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the WebGPU graphics component of Mozilla Firefox. Use-after-free bugs can lead to memory corruption, potentially allowing attackers to execute arbitrary code or cause denial of service. Mozilla fixed this issue in Firefox 152 as part of a broader set of memory safety fixes. The vendor advisory classifies the impact as high and references Bug 2039568 for technical details.
Potential Impact
The vulnerability poses a high impact risk due to its nature as a use-after-free bug in a critical graphics component, which could lead to memory corruption and potentially arbitrary code execution. However, there are no known exploits in the wild currently reported.
Mitigation Recommendations
A fix for this vulnerability is available in Firefox 152. Users and administrators should update to Firefox 152 or later to remediate this issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-06-15T15:08:07.470Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-57/","vendor":"Mozilla"}]
Threat ID: 6a314c7b0b89be6888b4cbc4
Added to database: 6/16/2026, 1:15:39 PM
Last enriched: 6/16/2026, 1:46:59 PM
Last updated: 6/17/2026, 4:59:34 AM
Views: 8
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