Is CVE-2026-15718 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-15718?

CVE-2026-15718 has a CVSS v3 severity of MEDIUM (4.3).

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CVE-2026-15718

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.