Medium 4.3Published Jun 2, 2026

CVE-2026-10702JIT miscompilation in the JavaScript Engine: JIT component

Updated under an hour ago (Oct 26, 2026, 5:40 PM ET)

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It affects Mozilla Firefox and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 151.0.3.

CVSS: 4.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness (CWE): CWE-843, CWE-733
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mozilla
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Mozilla Firefox mozilla:firefox (from the name)	from 151.0.3 not affected	CNA record
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux	10	CISA ADP
mozilla firefox mozilla:firefox	before 151.0.3	NVD

References

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2040903	permissions-required
https://www.mozilla.org/security/advisories/mfsa2026-54/	vendor-advisory
https://access.redhat.com/security/cve/CVE-2026-10702
https://bugzilla.redhat.com/show_bug.cgi?id=2484118
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-10702.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.