CVE-2026-8973: Vulnerability in Mozilla Firefox
Multiple memory safety bugs were present in Mozilla Firefox version 150, some showing evidence of memory corruption that could potentially allow arbitrary code execution. These vulnerabilities were addressed and fixed in Firefox 151. The issues are part of a broader set of security fixes released by Mozilla, covering high to low impact vulnerabilities across various components. There is no indication of known exploits in the wild for these specific bugs. Users are advised to update to Firefox 151 to mitigate these risks.
AI Analysis
Technical Summary
CVE-2026-8973 refers to a set of memory safety vulnerabilities in Mozilla Firefox 150. These bugs involve memory corruption that could be exploited to execute arbitrary code. The vulnerabilities were fixed in Firefox 151 as part of a security advisory that also addressed multiple other issues with varying impacts. The advisory confirms the fixes and classifies the impact of these memory safety bugs as high. No CVSS score is provided, but the vendor advisory clearly states the vulnerabilities were remediated in the subsequent Firefox release.
Potential Impact
The vulnerabilities could have allowed attackers to exploit memory corruption bugs to execute arbitrary code on affected systems running Firefox 150. This poses a high security risk, potentially compromising user systems. However, there are no known exploits in the wild reported at this time. The fixes in Firefox 151 eliminate these risks by addressing the underlying memory safety issues.
Mitigation Recommendations
Mozilla has fixed these vulnerabilities in Firefox 151. Users and organizations should update to Firefox 151 or later to ensure these memory safety bugs are remediated. Since this is a client software product, patching the browser is the primary and effective mitigation. No additional vendor-recommended mitigations are indicated.
CVE-2026-8973: Vulnerability in Mozilla Firefox
Description
Multiple memory safety bugs were present in Mozilla Firefox version 150, some showing evidence of memory corruption that could potentially allow arbitrary code execution. These vulnerabilities were addressed and fixed in Firefox 151. The issues are part of a broader set of security fixes released by Mozilla, covering high to low impact vulnerabilities across various components. There is no indication of known exploits in the wild for these specific bugs. Users are advised to update to Firefox 151 to mitigate these risks.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8973 refers to a set of memory safety vulnerabilities in Mozilla Firefox 150. These bugs involve memory corruption that could be exploited to execute arbitrary code. The vulnerabilities were fixed in Firefox 151 as part of a security advisory that also addressed multiple other issues with varying impacts. The advisory confirms the fixes and classifies the impact of these memory safety bugs as high. No CVSS score is provided, but the vendor advisory clearly states the vulnerabilities were remediated in the subsequent Firefox release.
Potential Impact
The vulnerabilities could have allowed attackers to exploit memory corruption bugs to execute arbitrary code on affected systems running Firefox 150. This poses a high security risk, potentially compromising user systems. However, there are no known exploits in the wild reported at this time. The fixes in Firefox 151 eliminate these risks by addressing the underlying memory safety issues.
Mitigation Recommendations
Mozilla has fixed these vulnerabilities in Firefox 151. Users and organizations should update to Firefox 151 or later to ensure these memory safety bugs are remediated. Since this is a client software product, patching the browser is the primary and effective mitigation. No additional vendor-recommended mitigations are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-05-19T12:30:21.005Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-46/","vendor":"Mozilla"}]
Threat ID: 6a0c6782ec166c07b0a99bc2
Added to database: 5/19/2026, 1:37:06 PM
Last enriched: 5/19/2026, 1:52:49 PM
Last updated: 5/19/2026, 2:41:32 PM
Views: 5
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