We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Mozilla
  • Firefox

No data.

No data.

References
Link Providers
https://bugzilla.mozilla.org/show_bug.cgi?id=2045443 cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-15718 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-15718 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-67/ cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-70/ cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-70/#CVE-2026-15718 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-72/ cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-72/#CVE-2026-15718 cve-icon
History

Fri, 24 Jul 2026 00:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Critical

Wed, 22 Jul 2026 20:00:00 +0000

Type Values Removed Values Added
Description We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6 and Firefox ESR 140.13. We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13.
References

Tue, 21 Jul 2026 12:45:00 +0000

Type Values Removed Values Added
Description We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6. We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6 and Firefox ESR 140.13.
References

Tue, 14 Jul 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-763
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 14 Jul 2026 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Tue, 14 Jul 2026 12:45:00 +0000

Type Values Removed Values Added
Description We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6.
Title Invalid pointer in the JavaScript: WebAssembly component
References
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2026-07-14T12:15:46.176Z

Updated: 2026-07-22T19:19:21.078Z

Reserved: 2026-07-14T12:15:45.500Z

Link: CVE-2026-15718

cve-icon Vulnrichment

Updated: 2026-07-14T13:35:01.033Z

cve-icon NVD

No data.

cve-icon Redhat

Severity : Critical

Publid Date: 2026-07-14T12:15:46Z

Links: CVE-2026-15718 - Bugzilla